 11 January 2014.↑ Wallach, V.; Wüster, W.; Broadley DG. (2009). "In praise of subgenera: taxonomic status of cobras of the genus Naja Laurenti (Serpentes: Elapidae)" (PDF). Zootaxa. 2236: 26–36. සම්ප්‍රවේශය 11 January 2014.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ 9.0 9.1 9.2 9.3 O'Shea, M. (2005). Venomous Snakes of the World. United Kingdom: New Holland Publishers. p. 71. ISBN 0-691-12436-1.↑ Broadley, DG. (1983). Fitzsimons' Snakes of Southern Africa. Johannesburg: Delta Books. ISBN 0-947464-30-1.↑ 11.0 11.1 11.2 Burton, M. (2002). International Wildlife Encyclopedia. United States: Marshall Cavendish Corp; 3rd edition. pp. 481–482. ISBN 0-7614-7270-3.↑ 12.0 12.1 12.2 Spawls, Branch, S., B. (1995). The Dangerous Snakes of Africa. Ralph Curtis; Revised Edition. p. 71. ISBN 978-0-88359-029-4.{{cite book}}:  CS1 maint: multiple names: authors list (link)↑ Shine, R.; Branch WR., Webb JK., Harlow PS., Shine T., Keogh JS. (June 2007). "Ecology of cobr