“Analisis Life Time Undercarriage Excavator Komatsu Studi Kasus : Di PT. BIMA”. JTM : JURNAL TEKNIK MESIN 1, no. 1 (June 30, 2025): 21–27. Accessed December 8, 2025. https://jurnal.politap.ac.id/index.php/jtm/article/view/1928.