Muhammad Adham bin Azman. “Computational Analysis of Fit Between Human Head Shapes and Taekwondo Headgear”.
Research Progress in Mechanical and Manufacturing Engineering 3, no. 1 (August 14, 2022): 502–511. Accessed January 23, 2025.
https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/4467.