Fu Haw, Ho, and See Toh Jun Xin. “Development Of A Product Green Functional Assessment Tool To Improve Resources Sustainability”. Research Progress in Mechanical and Manufacturing Engineering 2, no. 1 (April 20, 2021): 35–47. Accessed March 1, 2024. https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/596.