Agashe, S.N., and Sulekha Cdhitnis. “Preliminary Sporological Analysis of Some Carbonaceous Shale Sample from Kamptee Coalfield, Nagpur District, M.S. India”. Journal of Palaeosciences 21, no. (1-3) (December 31, 1972): 107–112. Accessed May 9, 2024. https://jpsonline.co.in/index.php/jop/article/view/1473.