Choudhury, A.; Lahiri Choudhury, D. K.; Desai, A.; Duckworth, J. W.; Easa, P. S.; Johnsingh, A. J. T.; Fernando, P.; Hedges, S.; Gunawardena, M.; Kurt, F., Karanth, U. Lister, A., Menon, V., Riddle, H., Rübel, A. & Wikramanayake, E. (IUCN SSC Asian Elephant Specialist Group) (2008). "Elephas maximus". IUCN Red List of Threatened Species. 2008: e.T7140A12828813. สืบค้นเมื่อ 29 October 2018.{{cite journal}}: CS1 maint: multiple names: authors list (ลิงก์)
