RAINA, A. K., and VMSR MURTHY. “Selection Methodology for Roadheader and Tunnel Boring Machine in Different Geological Conditions: National Perspective Plan Project (CPRI) – a Success Story”. Journal of Mines, Metals and Fuels 69, no. 9 (January 24, 2022): 301–309. Accessed May 18, 2024. https://www.informaticsjournals.com/index.php/jmmf/article/view/29426.