Ibrahim, Bustami, Aziza Fadhila, and Rofan Romansyah. “PERANCANGAN GEARBOX TRAKTOR TANGAN 2 KECEPATAN 1 MUNDUR DENGAN SISTEM PEMINDAH GIGI SYNCHROMESH”. Machine : Jurnal Teknik Mesin 4, no. 1 (January 2, 2018): 14-20. Accessed October 21, 2021. https://journal.ubb.ac.id/index.php/machine/article/view/447.