Prasad, Mahesh, E.G. Khare, K. Ambwani, and Sanjai Kumar Singh. “Palynological Studies in the Lower Siwalik Sediments of Nahan, Himachal Pradesh, India”. Journal of Palaeosciences 60, no. (1-2) (December 31, 2011): 323–333. Accessed May 2, 2024. https://www.jpsonline.co.in/index.php/jop/article/view/179.