Litteratur
Numismatic literature, India, incl. Jha, A., Rajgor, D., Studies in the Coinage of the Western Ksatrapas, Dutta, M., A Study of the Satavhana Coinage, Sircar, D. C., Studies in Indian Coins, Krishnamurthy, R., Non-Roman Ancient Foreign Coin from Karur in India, Ed. Dr. Nagasawmy, R., Sangam: Numismatics and Cultural History, Essays in Honour of Dr. R. Krishnamurthy, in total 6 pcs