Channing, Alan, and Ninda Baptista. 2013. “Amietia angolensis and A. fuscigula (Anura: Pyxicephalidae) in Southern Africa: A Cold Case Reheated”. Zootaxa 3640 (4). Auckland, New Zealand:501–520. https://doi.org/10.11646/zootaxa.3640.4.1.