Singh, Trilochan, and S.K.M. Tripathi. “Siwalik Sediments of Arunachal Himalaya: Palynology, Palaeoecology and Palaeogeography”. Journal of Palaeosciences 38 (December 31, 1989): 325–332. Accessed May 7, 2024. https://www.jpsonline.co.in/index.php/jop/article/view/1667.