Frost, Darrel R. (2015). "Insuetophrynus Barrio, 1970". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 November 2015.
Frost, Darrel R. (2015). "Insuetophrynus acarpicus Barrio, 1970". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 November 2015.
Diaz, Nelson F.; Valencia, Jose; Sallaberry, Michel (1983). "Life history and phylogenetic relationships of Insuetophrynus acarpicus (Anura: Leptodactylidae)". Copeia. 1983 (1): 30–37. doi:10.2307/1444695. JSTOR1444695.
edgeofexistence.org
"Barrio's Frog (Insuetophrynus acarpicus)". EDGE of Existence programme (Evolutionarily Distinct and Globally Endangered species). Zoological Society of London. Retrieved 1 November 2015.
Diaz, Nelson F.; Valencia, Jose; Sallaberry, Michel (1983). "Life history and phylogenetic relationships of Insuetophrynus acarpicus (Anura: Leptodactylidae)". Copeia. 1983 (1): 30–37. doi:10.2307/1444695. JSTOR1444695.