↑ Groves, C. (2005-11-16). Wilson, D. E., and Reeder, D. M. (eds) (ed.). Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. p. 183. ISBN 0-801-88221-4.CS1 maint: multiple names: editors list (link) CS1 maint: extra text: editors list (link) CS1 maint: extra text (link)
1 2 Fruth, B., Benishay, J.M., Bila-Isia, I., Coxe, S., Dupain, J., Furuichi, T., Hart, J., Hart, T., Hashimoto, C., Hohmann, G., Hurley, M., Ilambu, O., Mulavwa, M., Ndunda, M., Omasombo, V., Reinartz, G., Scherlis, J., Steel, L. & Thompson, J. (2008). Pan paniscus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 4 January 2009. Listed as Endangered (EN A4cd v3.1)
