BioStor
 | Proceedings of Learned Societies (1861) Annals And Magazine of Natural History 8: 334-341 |
 | East African mammals in the United States National Museum. Part III. Primates, Artiodactyla, Perissodactyla, Proboscidea, and Hyracoidea N Hollister (1919) Bulletin United States National Museum 99: 1-164 |
 | A checklist of African mammals G M Allen (1939) Bulletin of the Museum of Comparative Zoology, Harvard 83: 1-763 |
 | Zur Erforschungsgeschichte und Namengebung beim Orang-Utan, Pongo satyrus (Linnaeus, 1758); Synon. Pongo pygmaeus (Hoppius, 1763). (Mit Kurzbibliographie) O Röhrer-Ertl (1983) Spixiana 6: 301-332 |