CITES: Convention on International Trade in Endangered Species of Wild Fauna and Flora: Appendices I, II and II, valid from 1 July 2008, online.
csir.co.za
researchspace.csir.co.za
G. R. McLachlan: South African Red Databook – Reptiles and Amphibians. South African national scientific programmes report 23, 1978, S. 32, online, pdf.
