Nguồn
 The Greeks in Bactria and India, W.W. Tarn, Cambridge University Press.
 The Coin types of the Indo-Greek Kings 256-54 BCE, A.K. Narain
 China in Central Asia: The Early Stage 125 BC – AD 23: an annotated translation of chapters 61 and 96 of the History of the Former Han Dynasty. A. F. P. Hulsewé, and M. A. N. Loewe, 1979. Leiden: E. J. Brill.