Poster Presentations
International Conference on Advanced Functional Materials and Nanotechnology
1. a-Si EPID modeling in GATE for Monte Carlo investigation on the dosimetry and optical properties of Gd2O2S:TbGd2O2S:Tb and Lu2SiO5:Ce Lu2SiO5:Ce scintillators
Dainna Recel S. Pamisa, Catherine Therese J. Quiñones
[e-Poster], [Introduction Video]
2. Application of random forest in cytotoxicity dichotomous classification prediction of nanoparticles
Farlley G. Bondaug, Aries P. Valeriano, Irelie P. Ebardo, Phoebe A. Sombilon, Gabriel C. Engcong, John Riz V. Bagnol, Mary Joy R. Latayad, Jay Michael R. Macalalag, Brian Dominic J. Paradero, Maricris L. Mayes, Mannix P. Balanay, Arnold C. Alguno and Rey Y. Capangpangan
[e-Poster], [Introduction Video]
3. Atomic force microscopy characterization of polyacrylamide substrate for traction force application
Rosario L. Reserva, Shusuke Ohura, Daisuke Miyashiro, Mark Nolan P. Confesor and Kazuo Umemura
[e-Poster], [Introduction Video]
4. Biological extraction and characterization of chitin biopolymer from local bangus (Chanos chanos) and tilapia (Oreochromis niloticus) fish scales waste
Nika L. Pareja, Doris B. Montecastro and Antonio M. Basilio
[e-Poster], [Introduction Video]
5. Capture and Detection of Arsenic Using Cellulose Biopolymer: A First-principles Study
Art Anthony Z. Munio, Alfredo Q. Liboon, Jr., Alvanh Alem G. Pido, and Leo Cristobal C. Ambolode II
[e-Poster], [Introduction Video]
6. Design Methodology of a Voltage Bandgap Reference with High PSRR in Advanced Technology Nodes for LDO Applicatio
Robert Leemar M. Bagundol, Jefferson A. Hora, Emrys Leowhel Oling
[e-Poster], [Introduction Video]
7. DFT study on electronic properties of gas- and metal-adsorbed divacancy-defected SWCNTs
Diamond C. Domato, Kim S. Ponce, Leo Cristobal C. Ambolode II
[e-Poster], [Introduction Video]
8. Exploring the Potential Energy Surface of the Identity SN2 Reactions of Halide Anions with Methyl Halides
Miguel Angelito T. Lacasan, Marvin Jose F. Fernandez
[e-Poster], [Introduction Video]
9. Fabrication of polyurethane-modified concrete with zinc oxide nanoparticles using cocopol blend polyols
Renzo Miguel R. Hisona, Arnold C. Alguno, Arnold A. Lubguban, Roberto M. Malaluan, and Noel Lito B. Sayson
[e-Poster], [Introduction Video]
10. First-principles study of optical properties of SWCNT/Cellulose
Naomi Jane Jacosalem-Laguna, Art Anthony Z. Munio, Maria Theresa Mae M. Micompal, Daisy Shane L. Atayan, Leo Cristobal C. Ambolode II
[e-Poster], [Introduction Video]
11. Hunting monolayer graphene: How does the thickness affect the raman spectra of graphene?
John Paul J. Aseniero, Ariel Jorge F. Payot, Horace Andrew F. Husay, Arnel A. Salvador, Eduardo R. Magdaluyo Jr., Karim M. Omambac, Cyril S. Salang
[e-Poster], [Introduction Video]
12. In Silico Nano-QSAR Toxicity Classification by Support Vector Machine
Kryzze Lee T. Serot, John Riz V. Bagnol, Farlley G. Bondaug, Phoebe A. Sombilon, Irelie P. Ebardo, Gabriel C. Engcong, Aries P. Valeriano, Rey Y. Capangpangan
[e-Poster], [Introduction Video]
13. Influence of Fe ions on the micro-structural characteristics sol-gel prepared TiO2 particles
Niziel D. Tagdulang, Romnick Unabia and Rolando T. Candidato Jr.
[e-Poster], [Introduction Video]
14. Influence of the sizes of gold nanoparticles on its colorimetric sensing for chicken meat spoilage detection
Rolen Brian P. Rivera, Noel Lito B. Sayson, Arnold A. Lubguban, Roberto M. Malaluan, Gaudencio C. Petalcorin, Jr., Rey Y. Capangpangan, Felmer S. Latayada, Arnold C. Alguno
[e-Poster], [Introduction Video]
15. Magnetron sputtered and microwave-assisted thin film deposition
Michelle Marie S. Villamayor
[e-Poster], [Introduction Video]
16. Micro-structural analysis of solution precursor plasma sprayed Fe-added TiO2 coatings
Key T. Simfroso, Romnick B. Unabia, Shena Ramyr S. Cabo, Angelito Britos, Paweł Sokołowski, Rolando T. Candidato, Jr.
[e-Poster], [Introduction Video]
17. Monte Carlo study of the gamma yield of various scintillating crystals in a simple Positron Emission Tomography (PET) system
John Jebert Joshua T. Rebuta and Catherine Therese J. Quiñones
[e-Poster], [Introduction Video]
18. On cytotoxicity classification of nanoparticles via regularized regression models
Aries P. Valeriano, Farlley G. Bondaug, Irelie P. Ebardo, Phoebe A. Sombilon, Gabriel C. Engcong, John Riz V. Bagnol, Mary Joy R. Latayada, Jay Michael R. Macalalag, Brian Dominic J. Paradero, Maricris L. Mayes, Mannix P. Balanay, Arnold C. Alguno and Rey Y. Capangpangan
[e-Poster], [Introduction Video]
19. Periodic Calculations of Structural and Electronic Properties of Pristine and Alkali Metal (Na, Li, K)-Doped Polypyrrole using Density Functional Theory
Prudence Peace V. Bustamante, Irmalyn B. Paymalan
[e-Poster], [Introduction Video]
20. Photoluminescence of GaAs with varying temperature
Johndell C. Canata, Florencio D. Recoleto, Jr.
[e-Poster], [Introduction Video]
21. Preliminary study on the optical characteristics of SWCNT hybrids dispersed using cellulose extracted from corn husk and coconut coir
Aries Mae P. Calam, Rolando T. Candidato, Jr., Yuki Ide and Kazuo Umemura
[e-Poster], [Introduction Video]
22. Synthesis and characterization of poly(urea)urethane hybrid coating derived from coconut oil-based polyester polyol for anti-corrosion application
Dave Joseph E. Estrada, Amierson C. Tilendo, Gerard G. Dumancas, Roberto M. Malaluan, Cyrene F. Caramba, Adams J. Fajardo, Giselle A. Lisondra, Arnold C. Alguno, and Arnold A. Lubguban
[e-Poster], [Introduction Video]
23. Synthesis of a hydroxyl-terminated prepolymer via direct amidation of coconut oil with sequential prepolymerization
Louell Nikki A. Hipulan, Roger G. Dingcong, Jr., Dave Joseph E. Estrada, Arnold A. Lubguban, Roberto M. Malaluan, and Hernando P. Bacosa
[e-Poster], [Introduction Video]
24. Synthesis of Urea-doped carbon quantum dots from Guava (Psidium guajava) leaf extract via microwave-assisted approach
Restituto M. Cortez, Jr., Aldrin A. Tan, Jose Emmanuel L. Camacho, Rhea G. Abisado-Duque, Marlon T. Conato
[e-Poster], [Introduction Video]
25. The effect of synthesis temperature on the size distribution of silver nanoparticles synthesized using Psidium guajava and its antibacterial activity
Lloyd Allan T. Cabañog, Rey Marc T. Cumba, Melania G. Enot, Joselito Labis, Aaron Andrew Mutia, Kurt Sterling Ubas, Marjune Bonilla, Archie Ruda, Rey Y. Capangpangan, and Arnold C. Alguno
[e-Poster], [Introduction Video]
26. Thermal Stability of Synthesized Cellulose Nanocrystals from Water Hyacinth (Eichhornia crassipes) Stem Fibers
Mark Angelou M. Siega and Crijamaica Oceña
[e-Poster], [Introduction Video]
27. Understanding the Effect of Traps in Light Emitting Electrochemical Cells
Lyndon D. Bastatas, Noel Lito B. Sayson, Cresente O. Cabahug, Jason D. Slinker
[e-Poster], [Introduction Video]
28. Understanding the Synergetic Interaction of Graphene-Oxide and Calcium-Silicate-Hydrates (C-S-H) Nanocomposite: Ab Initio Study
Art Anthony Z. Munio, Alfredo Q. Liboon, Jr. and Leo Cristobal C. Ambolode II
[e-Poster], [Introduction Video]
Material Science and Engineering, Photonics
1. Air spraying of TiO2 particles suspended in a polymeric solution
Angelito V. Britos, Key T. Simfroso, Dave Joseph Estrada, Noel Lito B. Sayson, and Rolando T. Candidato, Jr.
2. Batch Adsorption Studies on Coconut Oil-based Polyurethane Foam-Activated Carbon Composite for Lead Sequestration in Aqueous Media Detected Using UV-Visible Spectroscopy Technique
Rubie Mae D. Fernandez, Tomas Ralph B. Tomon, Renz John R. Estrada, Shashwa M. Usop, Ruben F. Amparado, Rey Y. Capangpangan, Roberto M. Malaluan, Arnold A. Lubguban, and Hernando P. Bacosa
3. Electrical and optical characterization of graphite-ZnO conductive paint
Jamaica F. Cabahug, Kimberly S. Carangcarang, Jess E. Gambe
4. Fabrication of Au/SWCNT/Au Schottky Junction using Dry Film Pholithography
James H. Probitso and Eli Christopher I. Enobio
5. Fabrication of porous clay ceramics material; substrate for slow-release fertilizer
Kenneth P. Tutong, Kimberly S. Carangcarang, Dave Joseph E. Estrada and Jess E. Gambe
6. Functionalization of AC-Au Nanocomposites as Potential Nanomaterial for the Photocatalytic Activity of Methylene Blue
Jaycel Mae A. Embay, Rey Marc T. Cumba, and Angeline M. Atacador
7. I-V characterization of Au/SWCNT/Au Schottky Junction fabricated using dry film photolithography
Cristine Ruvy D. Mahilom, James H. Probitso and Eli Christopher I. Enobio
8. Influence of Nipa Sap to Biomass Ratio and Commercial S. cerevisiae in the Production of Bioethanol Using Spectral Absorption Measurement
Christia Marie C. Bacus, Ferdinand Michael B. Calo, Jr., and Romnick G. Unabia
9. Investigation of shielding properties of nuclear radiation protective materials using the SRIM software
Anjella Marri Leal, Marinell B. Palangao, and Jeffrey D. Tare
10. Maize – based composite films: functional group correlation to mechanical properties
Maria Teresa A. Batocael and Reynaldo M. Vequizo
11. Multi-layering of Dry Film Photoresist without Air Bubble
Dulce I. Mondoñedo, James H. Probitso and Eli Christopher I. Enobio
12. Nutrient Release of NPK-dipped Porous Ceramics
Mark Neil Ungab, Kimberly Carangcarang, Dave Joseph E. Estrada, and Jess E. Gambe
13. Observation of more than one direct optical transitions of polyaniline films on glass and on Si(100)
Husney Amenodin, Richelle Vacalares, Jose Presiphil Ontolan Jr., Junie Jhon Vequizo, Akira Yamakata, Reynaldo Vequizo
14. Physico-chemical properties of Manihot esculenta-based composite film
Jujen P. Bacotot and Reynaldo M. Vequizo
15. Properties of aniline dimer, 4-ADA, electrodeposited on ITO
Pretty Rose M. Pongcol, Richelle B. Vacalares, Reynaldo M. Vequizo and Majvell Kay O. Vequizo
16. Properties of electrochemically grown polyaniline on ITO
Christian Jay I. Latao, Richelle B. Vacalares, Reynaldo M. Vequizo and Majvell Kay O. Vequizo
17. Synthesis of AC/Ag nanocomposites as potential nanophotocatalyst for the removal of organic dyes under UV light irradiation
Phoebe Marie V. Matulin, Angeline M. Atacador, and Rey Marc T. Cumba
18. Synthesis of biopolymer from rotten Mangifera indica fruit for local industrial polymer production
An – nisaa M. Chua, Adrian Pierre B. Aguiling, Daniel Angelito G. Hernandez
19. The Effect of Coco-Shell Based Activated Carbon in Hexavalent Chromium Sequestration of Polyurethane Foam: A Batch Adsorption Experiment
Tomas Ralph B. Tomon, Rey Y. Capangpangan, Arnold A. Lubguban, Jaime Q. Guihawan, and Hernando P. Bacosa
20. Water quality index and filtration from activated carbon using oil palm empty fruit bunches
Emman Nicholas Blabe B. Idulsa, Jelsey Mei T. Tan, Daniel Angelito G. Hernandez
Theoretical, Computational and Applied Physics
1. A Stochastic Dynamical System Approach in Forecasting Seismic Signal of an Earthquake in Agusan Del Sur Region
Teotima Evangelista Gorres
2. Characterizing the Energy Use of an Academic Building Using Building Performance Simulations: A Case Study of Cebu Technological University, Moalboal Campus, Graduate School Building
Limic M. de la Calzada II, Mark Anthony Cabilo
3. Entrance and Exit Counter Security System
Celestino A. Quirante III
4. Investigation on the relationship of turbidity and grayscale level of dyed water samples using IR laser distance measurement sensor
Dashiel Lorenz M. Ruelos and Ricardo Narandan
5. Measuring the absolute magnitude and distance of the cepheid variable zeta-star-in-gemini using a DSLR camera
Hanz Carlo S. Quijano and Allan L. Alinea
6. Optimal conditions for launching a manned spacecraft into orbit using the spin launch system: a preliminary study
Joven M. Galliguez, Allan L. Alinea, and Cedrix Jake C. Jadrin
7. Temperature and relative humidity patterns in scattered Barangays of Dumaguete City
Giselle Ann A. Alvarez, Carlito C. Garcia, Jr., Merlie Deal Wasawas, Nasheva V. Hassan, Donabella A. Dionaldo, Nineveeh C. Gomez, Michael M. Cataluña, Jossa Teves and Dan Ryan Gutierrez
8. A preliminary study of 𝒑𝒑 → 𝒁′𝑩−𝑳 → 𝒕𝒕̅𝑯,𝑯 → 𝝉+𝝉− at FCC-hh
Jurdel N. Gallano, Venus Abbegaile S. Carbonel, Marlon P. Brade, Dennis C. Arogancia and Jan Mickelle V. Maratasa
9. A study of 𝒑𝒑 → 𝒁′𝑩−𝑳 → 𝒕𝒕̅𝑯,𝑯 → 𝒃𝒃̅ at the Future Circular Collider
Venus Abbegaile S. Carbonel, Jurdel Gallano, Marlon P. Brade, Dennis C. Arogancia, and Jan Mickelle V. Maratas
10. Bounds reach of a future circular collider on the parameters of a minimal B-L symmetric model
Marlon P. Brade, Jeremiah D. Juevesano, Pauline May Amethyst G. Salise, Dennis C. Arogancia, and Jan Mickelle V. Maratas
11. Density Functional Theory Studies of Carbon Nanotube – Cellulose Nanocrystals Hybrids
Marie Carmel M. Micompal and Leo Cristobal C. Ambolode II
12. DFT Study of the NMR Parameters of Bi@SWCNT Sytem
Ariel R. Balinas and Leo Cristobal C. Ambolode II
13. Dose reduction enhancement using a sandwiched bolus on the exit-depth-dose accumulation due to electron return effect: A Monte Carlo Study
Jana Raye F. Gesulga, Conrado T. Yocor, Jr., and Salasa A. Nawang
14. On the energy loss of alpha and proton particles
Ellen Mae E. Salvacion, Renna Mae V. Tondo and Salasa A. Nawang
15. Partial reconstruction study of 𝑩(𝑩𝟎→𝑱/𝝍(𝝁−𝝁+)𝜼′(𝜼𝝅+𝝅−))𝑩(𝑩𝒔→𝑱/𝝍(𝝁−𝝁+)𝜼(𝝅𝟎𝝅+𝝅−)) at FCC
Jeremiah D. Juevesano and Jan Mickelle V. Maratas
16. Simulating a laser heatsink design made from aluminum and copper using FEATool
Ammiel S. Majan, Mary Diane A. Pilapil, Rommel G. Bacabac
17. SRIM simulation of ion beam irradiation effects on oxide thin films
Chris Wilfred S. Estrada and Jeffrey D. Tare
18. Uncertainty calculation of 𝑩𝟎𝒔 semileptonic asymmetry at a high-luminosity 𝒁 factory
Dennis C. Arogancia, Jan Mickelle V. Maratasa and Stephane Monteil
19. Clustering Coefficient of Incomplete Watts-Strogatz Networks
David Paul M. Jinayon and Beverly V. Gemao
20. Elastic ep scattering dcs fitting via the modified Rutherford Scattering dcs
Marsden I. Badlisan, Jade C. Jusoy, Vincent Victor D. Velasco, and Jingle B. Magallanes
21. Monte Carlo simulation of probability distribution of a linear homopolymer with k=2 coincidences: the fBm Edwards model
Roshin Marielle N. Britos, Jinky B. Bornales, and Beverly V. Gemao
22. Phase-space White Noise Analysis Application in One-dimensional Erosion
Alviu Rey bin Nasir and Jingle B. Magallanes
23. Phase-Space White Noise Analysis of the Quantum Particle in an Exponentially-Growing Potential
Alviu Rey bin Nasir and Jingle B. Magallanes
Complex Systems, Soft Matter, Biophysics, Medical Physics
1. Distance from equilibrium measurement of a NESS
Emil Vincent P. Llanes, Michael Jade Y. Jerez, Mark Nolan P. Confesor
2. Dynamics of Active Diffusion-Limited Aggregation
Niccolo Anton D. Padro and Mark Nolan P. Confesor
3. Reconstructing double well potentials via driving
Romie Seth E. Florida, Michael Jade Y. Jerez and Mark Nolan P. Confesor
4. Single vs. multiple bouncing balls on a vibrating fluid surface: Differences in translational and rotational dynamics
Mira Luna T. Timosa, Mergebelle D. Dengal, and Adones B. Dengal
5. The Impact of War in Ukraine on the Efficiency of International Crude Oil Market
Virginio C. Torlao and Harvey M. Niere
6. Time-resolved transfer entropy dynamics between particle heading deviations in simulated active matter flocks
Ronald B. Claros and Mergebelle D. Dengal
7. A method for in-vivo dosimetry using an electronic portal imaging device
Dainna Recel S. Pamisa and Catherine Therese J. Quiñones
8. Depletion-like interactions in an active granular bath
Nathaniel B. Dimaocor, Kathleen C. Mendoza, and Mark Nolan P. Confesor
9. Determination of an Institutional Diagnostic Reference Level (DRL) for 16-slice and 128-slice Computed Tomography (CT) Scanner in a Tertiary Hospital in the Philippines
Abel F. Ole
10. Determining the dynamics of COVID-19 with and without the availability of vaccines in the City of Manila using the SIR Disease Model
Venus De Guzman, Anica Lauren Ang, Cian Margaret Cosep, Rica Caila Gonzales, Mhar Ian Estayan, Shiuan Ni Liang
11. Dose reduction effect using thermoplastic bolus on the exit-depth-dose accumulation due to electron return effect: A Monte Carlo simulation study
Conrado T. Yocor, Jr. and Salasa A. Nawang
12. Effective Temperature of Active Granular Chain on Periodic Potential Landscape
Argeena A. Agao-Agao and Mark Nolan P. Confesor
13. Investigation of the Depth Dose Profile in Irradiation of SARS-COV2 Envelope Protein using Electron Beam in PHITS Simulation
Raia T. Pasion and Eulogio S. Auxtero, Jr.
14. Monte Carlo simulation of radiation interaction with biological system at cellular level: An introduction to Geant4-DNA package
Maynard E. Limbaco and Salasa A. Nawang
15. Monte Carlo study on the annihilation photons transmitted from a water phantom irradiated with carbon-12 at varying energies for applications in Positron Emission Tomography (PET)
Jerome D. Aparri and Catherine Therese J. Quiñones
16. Morphology dynamic of confined Physarum polycephalum under acoustic perturbation
Tim Bryan B. Dilao, Jae Lord Dexter C. Filipinas, and Mark Nolan P. Confesor
17. Optimization of the selection filter for scattering – based proton imaging
Grema Fe I. Peñonal and Catherine Therese J. Quiñones
18. Oscillating contraction of protoplasmic veins of Physarum Polycephalum
Kent Kevin P. Tabiliran, Jae Lord Dexter C. Filipinas and Mark Nolan P. Confesor
19. Oscillation of Physarum polycephalum plasmodia wavefront in electrotaxis
Resa C. Malaay, Rosario L. Reserva and Mark Nolan P. Confesor
20. Photon beam profile investigation and percentage depth dose (PDD) determination in a dosimetric set-up using Elekta Synergy Linac
Eulogio S. Auxtero, Jr. and Catherine Therese J. Quiñones
21. Reverse alley – cropping by phytoremediation using Canna generalis for slash – burn land rehabilitation
Herlyn Kate P. Aizon, Aubrey Anne D. Tubo, Nica Hannah F. Seno, Gail Raenella Y. Castro, Thea Dorothy Pauline A. Lustica, Daniel Angelito G. Hernandez, Yevgeny Aster Dulla, Ronrick Arayata, and Mohammad Shazeli Che Zain
22. Validation of JENDL-4.0 in PHITS using alpha particles in water at 0.001 MeV to 1000 MeV in BNCT
Grezel Vemb O. Repoylo and Eulogio S. Auxtero, Jr.
Physics Education, Concepts and Demonstrations
1. Propagation of light from different source geometries with a smartphone light sensor
Junsaku E. Yamada, Gabriel Anthony L. Tibay, Nathan Vance C. See, and Unofre B. Pili
2. Sensitivity Characterization of HW 201 IR Sensor Module
Lowell D. Pamatong and Vincent Victor Velasco
3. Smartphone-based acoustic timer application for Free-fall experiments
Alwielland Q. Bello
4. Students’ Experiences in Learning Physics in an Online Class
Justine C. Mercado
5. Determining the magnetic permeability constant with a smartphone magnetometer
Gabriel Anthony L. Tibay, Junsaku E. Yamada, Nathan Vance C. See, and Unofre B. Pili
6. Development of a board game in teaching speed and velocity to grade 7 students
Rizza Paz S. Onganiza, Elesar V. Malicoban, Monera A. Salic – Hairulla, Ivy Claire V. Mordeno, and Neal Alfie Y. Lasta
7. Effects of Multiple Game-based Strategies in Grade 10 Science Learning
Radzma A. Morales, Wilfred G. Alava, Jr., and Alwielland Q. Bello
8. Integration of Situational Images in Solving Linear Equation Problems
Angel Constantine A. Bajana
9. Intellectual Property Application Profiles among Physics 3 Students at Philippine Science High School- Central Visayas Campus
Arlene Cahoy-Agosto, Benito A. Baje, Gencianus Alphonsus D. Retardo, Nardgin D. Balili, Ruby Cres Gayda, Riza Reyna G. Calma, Ro-ann S. Laude
10. Investigation of junior high school teachers’ perceptions and experiences in their implementation of the Spiral Progression Approach in the K to 12 science curriculum
Jed A. Tomarong and Monell John F. Cañizares
11. Lenz’s Law and the Art of Dance
Ginnie Vive T. Bautista, Giulani Judd B. Alvizo, Carl Marlo D. Asotigue, Kenneth D. Atienza, Nigel John F. Casido, Zennia Marie C. Granado, Dancel John Laspoñas, Kessiah Faye B. Monteroso, Jopit Kirby M. Noguerraza, Arianne Mer F. Paas, Moniera Nice T. Planas, BG Yvonne C. Sabellano, Alviu Rey bin Nasir
12. Mathematical Skills and Spatial Ability: Their Contribution to Physics Achievement
Regine F. Tesoro and Hazel Ann S. Soriano
13. Measuring the speed of sound in air using the phyphox application and some half-closed tube-shaped household materials
Dashiel Lorenz M. Ruelos, Khin V. Misuari, and Unofre B. Pili
14. Parameter estimates of the Physics achievement test using classical test theory and item response theory frameworks
Elesar V. Malicoban and Calixto G. Elnas Jr.
15. Performance-Based Counteractive Approach and Students-Academic Achievement In Physics
Emma Tubilla Surita and Susie D. Daza
16. Restructuring the Approach of Science Investigatory Project (SIP) Through Developing Skills in Analyzing a Research Abstract
Jas Felicisimo A. Cane, Arnold C. Alguno, Bernabe L. Linog, Rosario L. Reserva, and Sotero O. Malayao, Jr.
17. Teaching Physics Through Philippine Traditional Games
Ruth Mary P. Fallesgon, Mark Angelo T. Daganio, and Frecel May F. Eusebio
18. 4 in 1 Anti – Thief Door Alarm
Abdulrajab I. Layagin
19. The Effects of Modular Instruction in Learning Mechanics
Esthela Marie M. Tariao and Joseph P. Hortezuela