Su Emi Yusnita Wan Yusof, Wan, Omar Zakaria, and Zuraini Zainol. “Developing User Requirement’s Handbook for Malaysian Military Observers Using Phenomenology Approach”. International Journal of Engineering and Technology 7, no. 4.29 (November 26, 2018): 224–227. Accessed August 16, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/26259.