• [Wiki] http://en.wikipedia.org/wiki/Nimbaphrynoides_occidentalis.
• [amphibiaweb] https://amphibiaweb.org/cgi/amphib_query?rel-common_name=like&where-scientific_name=Nimbaphrynoides+occidentalis.
• [sciencedirect] https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/nimbaphrynoides.
• [CastPint2000] Castanet, J., Pinto, S., Loth, M.-M., and Lamotte, M. (2000). Age individuel, longévité et dynamique de croissance osseuse chez un amphibien vivipare, Nectophrynoides occidentalis (Anoure, Bufonidé). Annales des Sciences Naturelles, 21(1):11–17. doi:10.1016/s0003-4339(00)00103-9.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [SandMull2017] Sandberger-Loua, L., Müller, H., and Rödel, M.-O. (2017). A review of the reproductive biology of the only known matrotrophic viviparous anuran, the West African Nimba toad, Nimbaphrynoides occidentalis. Zoosyst. Evol., 93(1):105–133. doi:10.3897/zse.93.10489.