Mangal, Aveek, and P S Paul. “Role of Modern Strata Monitoring Instrumentation in PSLW Face in India”. Journal of Mines, Metals and Fuels 67, no. 4 (October 20, 2022): 192–198. Accessed May 19, 2024. http://informaticsjournals.com/index.php/jmmf/article/view/31542.