Bhaskara Rao, B., and B. Veera Reddy. “Planning a High Capacity Longwall Project in SCCL Vis-à-Vis Challenges Encountered – A Saga of the Adriyala Longwall Project”. Journal of Mines, Metals and Fuels, vol. 66, no. 11, Oct. 2022, pp. 797-04, https://informaticsjournals.co.in/index.php/jmmf/article/view/31802.