Sulaiman, Junaidah, Muhammad Farid Shaari, and Salwa Mahmood. “Semi-Automatic Pneumatic Actuated Otak-Otak Pin Insertion Machine”. Progress in Engineering Application and Technology 3, no. 1 (June 19, 2022): 656–662. Accessed July 18, 2024. https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/6335.