Pickersgill, Martin. “‘Frog Search’: Synonymy of Phrynobatrachus nigripes Pickersgill, 2007, Plus Other Comments and Corrections”. Zootaxa 1820, no. 1 (July 9, 2008): 67–68. Accessed May 2, 2025. https://www.mapress.com/zt/article/view/zootaxa.1820.1.6.