HOSER, R. (2009) A reclassification of the True Cobras; species formerly referred to the Genera Naja, Boulengerina and Paranaja.
Australasian Journal of Herpetology 7: 1 - 15 Link
LINGENHÖLE, S., & L. TRUTNAU (1989) Über die Kobras der Gattung Naja LAURENTI, 1758 in Thailand
Herpetofauna 11 (58): 6 - 13
LUTZ, M. (2006) Die Kobras des philippinischen Archipels Teil I: Die Philippinen Kobra, Naja philippinensis TAYLOR 1922.
Sauria 28 (3): 5 - 11
SLOWINSKI, J. B., & W. WÜSTER (2000) A NEW COBRA (ELAPIDAE; NAJA) FROM MYANMAR (BURMA).
Herpetologica56 (2): 257 - 27
TRAPE, J.-F., L. CHIRIO, D.G. BROADLEY & W. WÜSTER (2009) Phylogeography and systematic revision of the Egyptian cobra (Serpentes: Elapidae: Naja haje) species complex, with the description of a new species from West Africa. Zootaxa 2236: 1-25. Link
WALLACH, V., W. WÜSTER & D: G. BROADLEY (2009) In praise of subgenera: Taxonomix status of cobras of the genus Naja LAURENTI
(Serpentes: Elapidae). Zootaxa 2236: 26 - 36. Link
WÜSTER; W: (1998) THE COBRAS OF THE GENUS NAJA IN INDIA.
Hamadryad 23 (1): 15 - 32
WÜSTER; W. & R. S. THORPE (1992) ASIATIC COBRAS: POPULATION SYSTEMATICS OF THE NAJA NAJA SPECIES COMPLEX (SERPENTES: ELAPIDAE) IN INDIA AND CENTRAL ASIA. Herpetologica 48 (1): 69 - 85
WÜSTER, W., & R. S. THORPE (1992) DENTITIONAL PHENOMENA IN COBRAS REVISITED: SPITTING AND FANG STRUCTURE
IN THE ASIATIC SPECIES OF NAJA (SERPENTES, ELAPIDAE). Herpetologica 48 (4): 424 - 431
ZBIGNIEW, S. & G. A. ZEROVA (1990) Neogene cobras of the genus Naja (Serpentes, Elapidae) of eastern Europe.
Ann. Naturhist. Mus. Wien 91: 53 - 61. Link
WÜSTER, W., B. BUSH, J. S. KEOGH, M. O'SHEA & R. SHINE (2001) Taxonomic contributions in the "amateur" literature: comments
on recent descriptions of new genera and species by Raymond Hoser. Litteratura Serpentium 21: 1 - 19 Link