Anbia, Gun Gun, and I Gusti Ayu Arwati. “Effect of Intake Manifold Porting and Polishing and Throttle Body Venturi Diameter Modification on Motorcycle Performance”. Jurnal Teknik Mesin (Journal Of Mechanical Engineering), vol. 13, no. 2, June 2024, pp. 109-13, doi:10.22441/jtm.v13i2.27416.