David, Patrick, and Rosamma Mathew. “Notes on Some Noteworthy Snake Specimens Deposited in the Collections of Eastern Regional Station of the Zoological Survey of India”. Records of the Zoological Survey of India, vol. 104, no. 3-4, Dec. 2005, pp. 83-90, doi:10.26515/rzsi/v104/i3-4/2005/159303.