GIPPOLITI, S. & DELL’ORNO, G. (1996) – zootier-lexikon.org https://www.zootier-lexikon.org/index.php?option=com_k2&view=item&id=1835%3Agippoliti-s-dell-orno-g-1996&Itemid=217
Primates of the Cantanhez Forest and the Cacine Basin, Guinea-Bissau
Primates of the Cantanhez Forest and the Cacine Basin, Guinea-Bissau