(en) Anthropological Survey of India, People of India: India's communities, Volume 5, Oxford University Press (no v. 5, pg. 2215), (ISBN978-0-19-563354-2, lire en ligne).
(en) Madan, T.N., Way of Life: King, Householder, Renouncer : Essays in Honour of Louis Dumont, Motilal Banarsidass, (ISBN9788120805279, lire en ligne), p. 129.