Cismawan, Arif Deswanda, Eddy Ibrahim, Eddy Sutriyono, M. Taufik Toha, Maulana Yusuf, and Rahmat Wahyudi Putra. “Sensitivity of Coal Reserve Economic Feasibility to Price Fluctuations: A Case Study of an Open-Pit Coal Mine in East Kalimantan, Indonesia”. International Journal of Engineering Continuity 5, no. 1 (May 18, 2026): 197–218. Accessed June 5, 2026. https://ejournal.sultanpublisher.com/ijec/article/view/547.