Flora of Southern Africa : the Republic of South Africa, Basutoland, Swaziland and South West Africa - Codd, L. E. W. (Govt. Printer, 1984)

Flora of Southern Africa : the Republic of South Africa, Basutoland, Swaziland and South West Africa - Codd, L. E. W. (Govt. Printer, 1984)

IUCN Directory of Afrotropical Protected Areas (1987)

IUCN Directory of Afrotropical Protected Areas (1987)