L.  Minter, Burger, M., Harrison, J., Braack, H. H., Bishop, P. J., and Kloepfer, D., Eds., Atlas and Red Data Book of the Frogs of South Africa, Lesotho and Swaziland, vol. 9. Washington, D.C.: Smithsonian Institution, 2004.

A.  Channing and Howell, K., Amphibians of East Africa. Ithaca: Comstock Pub. Associates/Cornell University Press, 2006, p. 418 p., [24] p. of plates.