Grismer, L. L., Grismer, J. L. and Mcguire, J. A. (2006) “A new species of pitviper of the genus Popeia (Squamata: Viperidae) from Pulau Tioman, Pahang, West Malaysia”, Zootaxa. Auckland, New Zealand, 1305(1), pp. 1–19. doi: 10.11646/zootaxa.1305.1.1.