Zimkus, Breda M. (2009). "Biogeographical analysis of Cameroonian puddle frogs and description of a new species of Phrynobatrachus (Anura: Phrynobatrachidae) endemic to Mount Oku, Cameroon". Zoological Journal of the Linnean Society. 157 (4): 795–813. CiteSeerX10.1.1.588.4120. doi:10.1111/j.1096-3642.2009.00579.x. S2CID85845378.
Zimkus, Breda M. (2009). "Biogeographical analysis of Cameroonian puddle frogs and description of a new species of Phrynobatrachus (Anura: Phrynobatrachidae) endemic to Mount Oku, Cameroon". Zoological Journal of the Linnean Society. 157 (4): 795–813. CiteSeerX10.1.1.588.4120. doi:10.1111/j.1096-3642.2009.00579.x. S2CID85845378.
researchgate.net
Pfalzgraff, Tilo; Petersen, Mareike; Barej, Michael; Dahmen, Matthias; Doherty-Bone, Thomas; Gonwouo, L. Nono; Rödel, Mark-Oliver (June 2015). "The tadpoles of four Central African Phrynobatrachus species". Salamandra. 51: 91–102. Retrieved 13 December 2021.
Zimkus, Breda M. (2009). "Biogeographical analysis of Cameroonian puddle frogs and description of a new species of Phrynobatrachus (Anura: Phrynobatrachidae) endemic to Mount Oku, Cameroon". Zoological Journal of the Linnean Society. 157 (4): 795–813. CiteSeerX10.1.1.588.4120. doi:10.1111/j.1096-3642.2009.00579.x. S2CID85845378.