“OPTIMASI DIAMETER POROS TERHADAP VARIASI DIAMETER SPROKET PADA RODA BELAKANG SEPEDA MOTOR” (2014) Jurnal Poros Teknik Mesin UNSRAT, 3(1). Available at: https://ejournal.unsrat.ac.id/v3/index.php/poros/article/view/5334 (Accessed: 23 October 2026).