^Falkiner, Suzanne (1 November 2015). Joan in India. New Delhi, India: Xoum Publishing. pp. Four (Palanpur, Radhanpur, Varahi and Tervada) were under Muslim rulers, seven (Tharad and Morvada, Vav, Suigam, Diodar, Un, Santalpur and Chadchat) under Rajputs, and two (Bhabar and Kankrej) under koli thakardas (petty chiefs). Palanpur, with 2, 384 square miles and 215, 000 people, and Radhanpur, of 929 square miles and 90, 000 people, by far outstripped the others in size and importance. ISBN978-1-921134-99-9.
^Macmurdo, James (1977). The Peninsula of Gujarat in the Early Nineteenth Century. Sterling Publishers. p. 85. Kankrej : A petty state in Mahi Kanta, Gujarat comprising the chiefships of Un. Thara and Wara . Except Un , Thara and Wara were ruled by the Kolis . British relations with Kankrej dated from 1819–20 . In 1844 Kankrej was