Sylvia Anjani, et al. “DESIGN AND DEVELOPMENT OF A METAL FORGING PROTOTYPE USING A WHEEL-AXLE SYSTEM AND ELECTRIC MOTOR DRIVE ”. Journal of Frontier Research in Science and Engineering, vol. 4, no. 1, Mar. 2026, pp. 31-37, https://journal.riau-edutech.com/index.php/jofrise/article/view/192.