Kaur, Dr. Harpinder. “The Relations Between the People of Hills and Plains in the Pre-Colonial Period of Assam With Special Reference to the Posa System of the Ahom Administration”. The journal of contemporary issues in business and government 25, no. 1 (December 30, 2019): 213–219. Accessed September 12, 2025. https://textitlejournal.com/cibgp.com/index.php/1323-6903/article/view/168.