| References | 
            Brown, Rafe M.; Ferner, John W.; Sison, Rogelio V.; Gonzales, Pedro C.; Kennedy, Robert S. 1996. Amphibians and reptiles of the Zambales Mountains of Luzon Island, Republic of the Philippines. Herpetological Natural History 4 (1): 1-22 Brown; Rafe; Cameron Siler, Carl Oliveros, Luke Welton, Ashley Rock, John Swab, Merlijn Van Weerd, Jonah van Beijnen, Dominic Rodriguez, Edmund Jose, Arvin Diesmos 2013. The amphibians and reptiles of Luzon Island, Philippines, VIII: the herpetofauna of Cagayan and Isabela Provinces, northern Sierra Madre Mountain Range. ZooKeys 266 (2013) Special Issue: 1-120doi: 10.3897/zookeys.266.3982  - get paper hereChowdhury, M. A. W., Müller, J., & Varela, S. 2021. Climate change and the increase of human population will threaten conservation of Asian cobras. Scientific Reports, 11(1): 1-12  - get paper hereDaan, S. & Hillenius,D. 1966. Catalogue of the type specimens of amphibians and reptiles in the Zoological Museum, Amsterdam. Beaufortia 13: 117-144 DEVAN-SONG, Anne and Rafe M. BROWN 2012. Amphibians and Reptiles of Luzon Island, Philippines, VI: The Herpetofauna of the Subic Bay Area. Asian Herpetological Research 3 (1): 1–20  - get paper hereGojo-Cruz, Paul Henric P. and Leticia E. Afuang 2018. The Zoogeographic Significance of Caraballo Mountain Range, Luzon Island, Philippines With Focus on the Biogeography of Luzon’s Herpetofauna. Philippine Journal of Science 147 (3): 393-409  - get paper hereLeviton, A.E., R.M. Brown, and C.D. Siler. 2014. The dangerously venomous snakes of the Philippine Archipelago. in The Coral Triangle: The 2011 Hearst Biodiversity Philippine Expedition (G.C. Williams and T.M. Gosliner, eds.). California Academy of Sciences, USA, Pp 473–530 Leviton, Alan E.; Cameron D. Siler, Jeffrey L. Weinell, and Rafe M. Brown 2018. Synopsis of the Snakes of the Philippines. Proc. Cal. Acad. Sci. 64 (14): 399-568  - get paper hereLeviton,A.E. 1965. Contributions to a review of Philippine snakes. VII. The snakes of the genera Naja and Ophiophagus. Philippine J. Sci. 93: 531-550  - get paper hereLutz, M. 2006. Die Kobras des philippinischen Archipels, Teil I: Die Philippinen-Kobra, Naja philippinensis TAYLOR 1922. Sauria 28 (3): 5-11  - get paper hereShi, S.‐C.; Vogel, G.; Ding, L.; Rao, D.‐Q.; Liu, S.; Zhang, L.; Wu, Z.‐J.; Chen, Z.‐N. 2022. Description of A New Cobra (Naja Laurenti, 1768; Squamata, Elapidae) from China with Designation of a Neotype for Naja atra. Animals 12, 3481  - get paper hereSlowinski, Joseph B. and Wolfgang Wüster. 2000. A new cobra (Elapidae: Naja) from Myanmar (Burma). Herpetologica 56 (2): 257-270  - get paper hereSy, E.Y. & Balete, D.S. 2017. Geographic Distribution: Naja philippinensis (Northern Philippine Cobra). Herpetological Review 48 (3): 590.  - get paper hereSy, E.Y. & Vargas, M.G. 2017. Geographic Distribution: Naja philippinensis (Northern Philippine Cobra). Herpetological Review 48 (3): 590.  - get paper hereSy, Emerson Y. and Tony Gerard. 2014. Geographical Distribution: Naja philippinensis (Northern Philippine cobra). Herpetological Review 45 (4): 664-665  - get paper hereTaylor, E.H. 1922. The snakes of the Philippine Islands. Manila (Bureau of Printing or Science), Monograph 16: 312 pp.  - get paper hereWallach, V.; Wüster, W. & Broadley, D.G. 2009. In praise of subgenera: taxonomic status of cobras of the genus Naja Laurenti (Serpentes: Elapidae). Zootaxa 2236: 26–36  - get paper hereWallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp. Weinell, Jeffrey L.; Errol Hooper, Alan E. Leviton, Rafe M. Brown 2019. Illustrated Key to the Snakes of the Philippines. Proc. Cal. Acad. Sci. (4) 66 (1): 1-49  - get paper hereWüster, W.; Thorpe,R.S. 1991. Asiatic cobras: Systematics and snakebite. Experientia 47: 205-209  - get paper hereWüster, Wolfgang 1993. A century of confusion: Asiatic cobras revisited. Vivarium 4 (4): 14-18  |