Frost, Darrel R. (2015). "Amietophrynus taiensis (Rödel and Ernst, 2000)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 25 October 2015.
Frost, Darrel R. (2015). "Hyperolius nienokouensis Rödel, 1998". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 25 October 2015.
Rödel, Mark-Oliver; Ernst, Raffael (2002). "A new Phrynobatrachus from the Upper Guinean rain forest, West Africa, including a description of a new reproductive mode for the genus". Journal of Herpetology. 36 (4): 561–571. doi:10.2307/1565925. JSTOR1565925.
Rödel, Mark-Oliver; Ernst, Raffael (2002). "A new Phrynobatrachus from the Upper Guinean rain forest, West Africa, including a description of a new reproductive mode for the genus". Journal of Herpetology. 36 (4): 561–571. doi:10.2307/1565925. JSTOR1565925.