1. Ahmed, Khan Chowdhury Amanatulla. 1936. Cooch Beharer Itihas (Cooch Behar, The Cooch Behar State Press.
2. Barman, Rup Kumar. 2014. State Formation, Legitimization and Cultural Change: A Study of Koch Kingdom. The NEHU Journal 12 (1): 17–35.
3. Barua, Birichi Kumar 2016. History of Assamese Literature, New Delhi: Sahitya Academy.
4. Barua, K.L. 2009. Early History of Kamarupa, Guwahati: Bani Mandir.
5. Baruah, S.L. 2005. A Comprehensive History of Assam, New Delhi: Munshiram Manoharlal.