Widodo, Kurniawan Rahmat. “ANALISIS KEAUSAN SHAFT PADA FRONT IDLER EXCAVATOR (BACKHOE) HITACHI TIPE EX-100”. Jurnal Konversi Energi dan Manufaktur 7, no. 1 (January 15, 2022): 56 - 66. Accessed May 17, 2024. https://journal.unj.ac.id/unj/index.php/jkem/article/view/24688.