Litteratur
Numismatic Literature, India, incl. Krishnamurthy, R., The Pallava coins og Sangam Age Tamil Coins; Elliot, W., Coins of Southern India; Desikachari, T., South Indian Coins; Ganesh, K., Coins of Banavasi; Chattopadhyaya, B., Coins and Currency Systems in Southern India; Tuffneli, R. H. C., Coins of Southern India; Sarma, I. K., South Indian Coinage; in total 10 pcs