Prabowo, Heri, Rahul Hutmi, and Indang Dewata. “Optimizing Digging Equipment Productivity Using Overall Equipment Effectiveness (OEE) Method in Coal Overburden Mining Activities”. INVOTEK: Jurnal Inovasi Vokasional dan Teknologi 23, no. 2 (December 26, 2023): 99-108. Accessed March 13, 2025. http://invotek.ppj.unp.ac.id/index.php/invotek/article/view/1097.