^Journal of the Assam Research Society - Volumes 13-15 - Page 90,1959 Yoginl-tantra divides Kamarupa into four pithas or region (Ratna pitha, Swarna pitha, Kama pitha, and Saumara pitha)
^Sen, Dineschandra (1988), The Ballads of Bengal - Volume 1, Mittal Publications, p. 375
^Kakati, Banikanta (1967), The mother goddess Kamakhya, p. 7