D. C. Ganguly (1957). "Northern India During The Eleventh and Twelfth Centuries". In R. C. Majumdar (ed.). The Struggle for Empire. The History and Culture of the Indian People. Bharatiya Vidya Bhavan. p. 90. OCLC26241249.
D. C. Ganguly (1957). "Northern India During The Eleventh and Twelfth Centuries". In R. C. Majumdar (ed.). The Struggle for Empire. The History and Culture of the Indian People. Bharatiya Vidya Bhavan. p. 90. OCLC26241249.