"Enzymatic and toxinological activities of Hypnale hypnale (hump-nosed pit viper) venom and its fractionation by ion exchange high performance liquid chromatography". Journal of Venomous Animals and Toxins Including Tropical Diseases17 (4): 473–485. 2011. doi:10.1590/S1678-91992011000400015. பன்னாட்டுத் தர தொடர் எண்:1678-9199.
"Enzymatic and toxinological activities of Hypnale hypnale (hump-nosed pit viper) venom and its fractionation by ion exchange high performance liquid chromatography". Journal of Venomous Animals and Toxins Including Tropical Diseases17 (4): 473–485. 2011. doi:10.1590/S1678-91992011000400015. பன்னாட்டுத் தர தொடர் எண்:1678-9199.