Purwoko, Purwoko, and Akbar Widiantoro. “Pengaruh Ketinggian Pegas Katup Dan Diameter Intake Port Terhadap Torsi Dan Daya Mesin SOHC 110 Cm3”. AEEJ : Journal of Automotive Engineering and Vocational Education 5, no. 1 (July 11, 2024): 8-18. Accessed October 18, 2024. http://aeej.ppj.unp.ac.id/index.php/aeej/article/view/233.