Frost, Darrel R. (2018). "Afrixalus clarkei Largen, 1974". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 24 September 2018.
amphibiaweb.org
"Afrixalus clarkei". AmphibiaWeb. University of California, Berkeley. 2008. Retrieved 24 September 2018.