Singh, Sonjita, and Subrota Kumar Saha. “A Paleo-Bioclimatological Study on Gondwana Coal Deposits in Northwestern Bangladesh and the Associated Environment Reflected by Pollen and Geochemical Analysis”. Journal of the Asiatic Society of Bangladesh, Science 49, no. 1 (July 11, 2023): 101–119. Accessed November 22, 2024. https://banglajol.info/index.php/JASBS/article/view/67599.