as from southern Africa". Journal of Zoology. 272 (2): 183–193. doi:10.1111/j.1469-7998.2006.00252.x.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ 14.0 14.1 14.2 14.3 14.4 14.5 14.6 Marais, J. (1992). A Complete Guide to Snakes of Southern Africa (Republished 2004). South Africa: Struik Publishers. p. 312. ISBN 1-86872-932-X.↑ Tryon, BW. (15 November 1979). "Reproduction in Captive Forest Cobras, Naja melanoleuca (Serpentes: Elapidae)". Journal of Herpetology. Society for the Study of Amphibians and Reptiles. 13 (4): 499. JSTOR 1563487.↑ 16.0 16.1 16.2 16.3 16.4 Spawls, Branch, S., B. (1995). The Dangerous Snakes of Africa. Ralph Curtis; Revised Edition. p. 72. ISBN 978-0-88359-029-4.{{cite book}}:  CS1 maint: multiple names: authors list (link)↑ Mattison, C. (2007). The New Encyclopedia of Snakes. New York City: Princeton University Press. p. 272. ISBN 0-691-13295-X.↑ 18.0 18.1 18.2 18.3 Spawls, Branch, S., B. (1995). The Dangerous Snakes of Africa. Ralp