physical hazard: https://www.comcare.gov.au/safe-healthy-work/prevent-harm/physical-hazards 

chemical hazard: https://www.cdc.gov/niosh/learning/safetyculturehc/module-2/5.html biological hazard:https://www.cdc.gov/niosh/learning/safetyculturehc/module-2/2.html 

ergonomic hazard:https://www.comcare.gov.au/safe-healthy-work/prevent-harm/ergonomic-hazards 

Head protection: https://www.safeopedia.com/definition/915/head-protection#:~:text=What%20Does%20Head%20Protection%20Mean,head%20protection%20and%20eye%20protection. 

eye & face: https://www.osha.gov/etools/shipyard/shipbreaking/ppe/ppe-selection/eye-face-protection#:~:text=Eye%20and%20face%20protection%20is,General%20guidelines

body protection: https://weeklysafety.com/blog/body-protection#:~:text=Personal%20protective%20equipment%20(PPE)%20is,their%20bodies%20against%20workplace%20hazards.

RED: https://www.seton.co.uk/prohibited-symbol

YELLOW:https://www.ehs.washington.edu/research-lab/caution-and-warning-signs

BLUE:https://www.hse.gov.uk/workplacetransport/safetysigns/mandatory.htm

GREEN: https://safetyculture.com/topics/safety-symbols/  

Utilizing Tools for Specific Actions: www.ciscopress.com/articles/article.asp?p=2086239&seqNum=7 

Specific Actions and Tool Use: www.newegg.com/tools/custom-pc-builder 

Maintaining Correct Grip, Stance, and Body Positioning: www.studocu.com/ph/document/bohol-island-state-university/education/computer-assembly-and-disassembly/43760829 www.studocu.com/ph/document/bohol-island-state-university/education/computer-assembly-and-disassembly/43760829%20%20https://uk.rs-online.com/web/content/discovery/ideas-and-advice/esd-protection-guide#:~:text=ESD%20protection%20is%20the%20process,potentially%20damaging%20effects%20of%20electrostatic%20https://allpointsfasteners.com/blog/why-you-shouldnt-over-torque-fasteners.html 

Troubleshooting Common Problems Encountered During Tool Use: www.ifixit.com/ 

Key Safety Considerations: www.youtube.com/watch?v=PXaLc9AYIcg&t=948 

Agarwal S. (2024, June 12). Assessment & Evaluation: Every Teacher’s Favorite Tools for Effective Instruction. Suraasa. Retrieved from: https://www.suraasa.com/blog/assessment-and-evaluation 

https://www.studocu.com/ph/document/bohol-island-state-university/education/computer-assembly-and-disassembly/43760829 

Martins J. (2025, January 23). What is Planning. Asana. Retrived from: https://asana.com/resources/strategic-planning

https://uk.rs-online.com/web/content/discovery/ideas-and-advice/esd-protectionguide#:~:text=ESD%20protection%20is%20the%20process,potentially%20damaging%20effects%20of%20electrostatic

Kampen M. (2024, July 24). 6 Types of Assessment. Prodigy. Retrieved from: https://www.prodigygame.com/main-en/blog/types-of-assessment/

https://allpointsfasteners.com/blog/why-you-shouldnt-over-torque-fasteners.html 

https://www.ifixit.com/  

Hand tools safety 101: A comprehensive checklist. (n.d.). Tend Industrial Supplies. https://tendsupplies.com/blog/hand-tools-safety-101-a-comprehensive-checklist/

Introducing hand tools inspection procedures. https://www.linkedin.com/pulse/introducing-hand-tools-inspection-procedures-

Hand Tool Ergonomics - Checklist for hand tool selection. https://www.dir.ca.gov/dosh/dosh_publications/handtools6.html

A-Z Safety Talk on Hand Tool Inspections and Hazards - SafetyTalker. Safetytalker. https://safetytalker.com/safety-talks/hand-tool-inspections/

How to choose the right hand tool for your project. Coherent Market Insights, https://www.coherentmarketinsights.com, All Right Reserved 2025. https://www.coherentmarketinsights.com/blog/how-to-choose-the-right-hand-tool-for-your-project-964