1. Narimattam M. The Valley in Blossom: Neo-Vaishnavism and the Peoples of the Brahmaputra Valley.Guwahati: Spectrum Publications; 1988.
2. Kirtikar KR, Basu BD. Indian Medicinal Plants. Vol. 1-4. Allahabad; Lalit Mohan Basu: 1933.
3. Kanjilal UN, Das A, Kanjilal PC, De RN. Flora of Assam. Vol. 1-5. Delhi; A Von Book Company: 1934-1940.