M.  Pickersgill and Drewes, R. C., ?Phrynobatrachus sulfureogularis?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

R. C.  Drewes and Pickersgill, M., ?Phrynobatrachus versicolor?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

M.  Pickersgill and Drewes, R. C., ?Phrynobatrachus bequaerti?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

M.  Pickersgill and Drewes, R. C., ?Phrynobatrachus acutirostris?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, Burger, M., and Drewes, R. C., ?Phrynobatrachus africanus?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

R. C.  Drewes and Pickersgill, M., ?Phrynobatrachus asper?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.