↑Loader SP, Gower DJ, Ngalason W, Menegon M 2010 Three new species of Callulina (Amphibia: Anura: Brevicipitidae) highlight local endemism and conservation plight of Africa's Eastern Arc forests. Zool J Linn Soc 160: 496-514.
↑Callulina stanleyi Amphibian Species of the World, versão 6.0. American Museum of Natural History. Página acedida em 13 de Fevereiro de 2018.