Bharadwaj, D.C., and Archana Tripathi. “A Palynostratigraphic Study of Lower Gondwana Sediments from South Karanpura Coalfield, Bihar, India”. Journal of Palaeosciences 25, no. 1-3 (December 31, 1976): 39–61. Accessed December 4, 2024. https://jpsonline.co.in/index.php/jop/article/view/995.