A.C.L.G. Günther: The reptiles of British India. London: Pub. for the Ray society by R. Hardwicke, 1864, s. 341. (ang.).
birdsoftheworld.org
ophiophaga, [w:] The Key to Scientific Names, J.A.J.A.Jobling (red.), [w:] Birds of the World, S.M. Billerman et al. (red.), Cornell Lab of Ornithology, Ithaca [dostęp 2021-12-27](ang.).