Butynski, T. M., Cortes, J., Water, S., Fa, J., Hobbelink, M. E., van Lavieren, E., Belbachir, F., Cuzin, F., de Smet, K., Mouna, M., de Iongh, H., Menard, N. & Camperio-Ciani, A. (2008). Macaca sylvanus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 4 January 2009.
