Efendi, Muchammad, and Rachmat Firdaus. “Maximizing Motorcycle Power and Torque With Roller Modifications”. Indonesian Journal of Innovation Studies 25, no. 3 (June 10, 2024): DOI 10.21070/ijins.v25i3.1159. Accessed December 21, 2024. https://ijins.umsida.ac.id/index.php/ijins/article/view/1159.