J. - L.  Amiet and Burger, M., ?Trichobatrachus robustus.?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Phrynobatrachus manengoubensis?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Phrynobatrachus sandersoni?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Phrynobatrachus steindachneri?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Phrynobatrachus werneri?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Leptodactylodon albiventris?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Petropedetes johnstoni?, 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.

J. - L.  Amiet, Burger, M., and Howell, K. M., ?Phrynobatrachus auritus?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, Rödel, M. - O., and Fretey, T., ?Phrynobatrachus batesii?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.

J. - L.  Amiet, ?Conraua goliath?, In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. , 2004.