Frost, Darrel R. (2017). «Ctenophryne barbatula (Lehr and Trueb, 2007)». Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Consultado em 4 de outubro de 2017
Ctenophryne barbatula Amphibian Species of the World, versão 6.0. American Museum of Natural History. Página acedida em 13 de Fevereiro de 2018.
Lehr, Edgar; Trueb, Linda (2007). «Diversity among New World microhylid frogs (Anura: Microhylidae): morphological and osteological comparisons between Nelsonophryne (Günther 1901) and a new genus from Peru». Zoological Journal of the Linnean Society. 149 (4): 583–609. doi:10.1111/j.1096-3642.2007.00270.x