^Raffles, T. S. (1821). "XVII. Descriptive Catalogue of a Zoological Collection, Made on Account of the Honourable East India Company, in the Island of Sumatra and Its Vicinity, under the Direction of Sir Thomas Stamford Raffles, Lieutenant-Governor of Fort Marlborough; with Additional Notices Illustrative of the Natural History of Those Countries". Transactions of the Linnean Society of London. 1: 239–274.