Fox 1971, p. 146. Fox, Richard Gabriel (1971). Kin Clan Raja and Rule: State-Hinterland Relations in Preindustrial India (reprint ed.). University of California Press. pp. 146.
Roberts 2000, p. 94. Roberts, John Leonard (2000). Clan, King, and Covenant: History of the Highland Clans from the Civil War to the Glencoe Massacre (illustrated ed.). Edinburgh University Press. p. 134.