Ahmad UH, Ab Rahman MH, Yee Sin L, Maidin NA, Wakhi Anuar NFB. Development on Orthotics Insole for Flat Feet Focusing on Sport Usage Evaluated by Electromyography. IJIE. 2019;11(4). Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/4695