Marjuki, Ismael, Helanianto Helanianto, dan Betti Ses Eka Polonia. “MODIFIKASI DONGKRAK BOTOL DAN TREKER UNTUK MELEPAS BEARING MOTOR LISTRIK”. Injection: Indonesian Journal of Vocational Mechanical Engineering 2, no. 1 (Mei 2, 2022): 37-43. Diakses September 16, 2024. https://jurnal.politap.ac.id/index.php/injection/article/view/1461.