Shukla RR, Siddharth S. Petrological basis for rank (maturity) determination of Permian coals from Pathakhera coal belt, Satpura Basin, M. P., India. Journal of Nepal Geological Society [Internet]. 2001 Dec. 1 [cited 2024 Nov. 24];23:13–18. Available from: https://nepjol.info/index.php/JNGS/article/view/31862