Bharadwaj D, Salujha S. Sporological study of Seam VIII in Raniganj Coalfield, Bihar (India): Part 1. Description of Sporae Dispersae. JPS [Internet]. 1963 Dec. 31 [cited 2024 Jul. 23];12((1-3):181-215. Available from: https://jpsonline.co.in/index.php/jop/article/view/653