Agarwal1, Ankit, Om Narayan Singh, and Dr. S. S. Gupte. “ WESTERN COALFIELDS LIMITED - USING NUMERICAL METHODS”. International Journal of Technical Innovation in Modern Engineering & Science 5, no. 4 (December 1, 2021): 586–596. Accessed April 5, 2025. https://ijtimes.com/index.php/ijtimes/article/view/2839.