1. Fa, J.E., 1983a. An analysis of the status of the Barbary macaque (Macaca sylvanus, L.) in the wild — steps towards its conservation. In: D. Harper (ed.), “Symposium on Conservation of Primates and their Habitats”, University of Leicester, Vaughan Paper 31.
2. Fa, J.E., 1938b. The Barbary macaque — the future. OryxXVII: 62–67.
3. Merz, E., 1976. Bezeihungen zwischen Gruppen von Berberaffen (Macaca sylvana) auf la Montagne des Singes. Zeitschrift des Kolner Zoos, Heft 2: 59–67.
4. Scheffrahn, W., 1977. Transferrinbefunde bei Primaten. Archiv für Genetik49 /50: 180–182.
5. Scheffrahn, W., Biedermann, V., Rauch-Schwegler, Th., 1979. Agarose gel electrophoretic position of β1 C-globulin (C3) in primates (Prosimiae, Ceboidea, Cercopithecidae). Journal of Human Evolution, 8: 315–317.