Deb, Debasis, and Sreenivasa Rao Islavath. “Time and Motion Study of Dumpers and Shovel Deployed at a Shallow Depth Mine”. Journal of Mines, Metals and Fuels 66, no. 1 (June 13, 2021): 1–7. Accessed May 13, 2024. http://www.informaticsjournals.com/index.php/jmmf/article/view/27969.