Gusprita, Dicky Cahya, and Sylviana Maya Damayanti. “Improving Contractors’ Performance to Increase Electrical Locomotives (Elloco) Availability in Grasberg Blocking Cave (GBC) Mine”. European Journal of Business and Management Research 9, no. 5 (September 23, 2024): 76–85. Accessed April 24, 2025. https://ejbmr.org/index.php/ejbmr/article/view/2428.