Anand-Prakash, and D.C. Bharadwaj. “On the Palynostratigraphy of Argada `’S’ Seam in the South Karanpura Coalfield, Bihar”. Journal of Palaeosciences 19, no. 1-3 (December 31, 1970): 211–213. Accessed May 13, 2024. https://jpsonline.co.in/index.php/jop/article/view/869.