Frost, Darrel R. (2019). "Breviceps fuscus Hewitt, 1925". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 6 July 2019.
van der Meijden, Arie; Vences, Miguel; Hoegg, Simone; Meyer, Axel (December 2005). "A previously unrecognized radiation of ranid frogs in Southern Africa revealed by nuclear and mitochondrial DNA sequences". Molecular Phylogenetics and Evolution. 37 (3): 674–685. doi:10.1016/j.ympev.2005.05.001.