Kumar Sinha, Vijay, Bibhas Chandra, and J. K. Pattanayak. “Applicability of Activity-Based Management System in Coal Mines – a Case Study of an Underground Coal Mine”. Journal of Mines, Metals and Fuels 68, no. 4 (April 18, 2021): 120–130. Accessed November 7, 2024. https://informaticsjournals.co.in/index.php/jmmf/article/view/27642.