Litteratur
Numismatic Litterature, India, incl. Cunningham, A., Coins of Ancient India; Chabra, B. CH., Catalogue of the Gupta Gold Coins; Altekar, A. S., The Coinage of the Gupta Empire; Allan, J., Coins of Ancient India; Valentine, W. H., Copper Coins of India; Cunningham, A., Coins of the Indo-Schytians, Sakas & Kushans, in total 6 pcs