Widodo, Kurniawan Rahmat. 2022. “ANALISIS KEAUSAN SHAFT PADA FRONT IDLER EXCAVATOR (BACKHOE) HITACHI TIPE EX-100: Shaft Wear Analysis on Front Idler Excavator (Backhoe) Hitachi EX-100 Type”. Jurnal Konversi Energi Dan Manufaktur 7 (1):56-66. https://doi.org/10.21009/JKEM.7.1.8.