↑ Asha Vishnu; Material Life of Northern India: Based on an Archaeological Study, 3rd Century B.C. to 1st Century B.C. Mittal Publications. 1993. ISBN 978-8170994107. pg 3.
↑ Sailendra Nath Sen; Ancient Indian History And Civilization. New Age International. 1999. ISBN 978-8122411980. pg 152-154.
1 2 Ram Sharan Sharma; Perspectives in social and economic history of early India. Munshiram Manoharlal Publishers. 1995. ISBN 978-8121506724. pg 107.
↑ Lal Mani Joshi; Studies in the Buddhistic Culture of India During the 7th and 8th Centuries A.D. Motilal Banarsidass Publishers. 1977. ISBN 978-8120802810. pg 362.
↑ Romila Thapar; Aśoka and the Decline of the Maurya. Oxford University Press. 2001. ISBN 0-19-564445-X. pg 186.
