Jana, B.N., and A.K. Ghosh. “A Megaspore Assemblage from the Athgarh Formation and Its Bearing on the Age of the Formation”. Journal of Palaeosciences 46, no. (1-2) (December 31, 1997): 149–155. Accessed May 7, 2024. https://www.jpsonline.co.in/index.php/jop/article/view/1333.