Attributes / relations provided by
♦ ¹Behavior, Diet, and Movements of the Sulawesi Crested Black Macaque (Macaca nigra), Timothy G. O'Brien and Margaret F. Kinnaird, International Journal of Primatology, Vol. 18, No. 3, 1997 pp. 321-351
♦ ²The Diversity of Plants as Feed Resources for the Java Gibbon (Hylobates moloch), Grizzled Langur (Presbytis cornata), and Silver Langur (Trachypithecus auratus) In Gunung Halimun National Park, Wartika Rosa Farida and Harun, Jurnal Primatologi Indonesia, Vol. 3, No. 2, Desember 2000, p.:55-61