1. A History of India: Volume 1, 1966; Penguin, ISBN 0-14-013835-8
2. Asoka and the Decline of the Mauryas, 1961 (revision 1998); Oxford University Press, ISBN 0-19-564445-X
3. Ancient Indian Social History: Some Interpretations, 1978
4. http://www.hinduonnet.com/fline/fl1815/18150930.htm
5. http://www.hinduonnet.com/fline/fl1809/18090880.htm
"Delhi Historians Group's Publication "Communalization of Education: The History Textbooks Controversy", A report in 2002, New Delhi: Jawaharlal Nehru University, India