M. J.  Largen, Howell, K. M., Pickersgill, M., and Lötters, S., ?Phrynobatrachus minutus?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

M. - O.  Rödel, Msuya, C. A., Pickersgill, M., Minter, L., Largen, M. J., and Lötters, S., ?Phrynobatrachus natalensis?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

R.  Drewes, Pickersgill, M., and Lötters, S., ?Phrynobatrachus graueri?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.2. , 2004.

R.  Drewes, Howell, K., and Lötters, S., ?Phrynobatrachus irangi?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.2. , 2004.

C.  Msuya, Howell, K., Pickersgill, M., Drewes, R., and Lötters, S., ?Phrynobatrachus keniensis?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.2. , 2004.

C.  Msuya, Howell, K., Lötters, S., Pickersgill, M., and Drewes, R., ?Phrynobatrachus kinangopensis?, In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2, 2004.

M.  Pickersgill, Channing, A., Poynton, J. C., and Lötters, S., ?Phrynobatachus mababiensis?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

S.  Schick, Zimkus, B. M., Channing, A., Koehler, J., and Lötters, S., ?Systematics of ?Little Brown Frogs? from East Africa: Recognition of Phrynobatrachus scheffleri and description of a new species from the Kakamega Forest, Kenya (Anura: Phrynobatrachidae)?, Salamandra, vol. 46, pp. 24-36, 2010.