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♦ ¹"Fig-eating by vertebrate frugivores: a global review", MIKE SHANAHAN, SAMSON SO, STEPHEN G. COMPTON and RICHARD CORLETT, Biol. Rev. (2001), 76, pp. 529–572
♦ 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
♦ ³Food Habits of Formosan Rock Macaques (Macaca cyclopis) in Jentse, Northeastern Taiwan, Assessed by Fecal Analysis and Behavioral Observation, Hsiu-Hui Su and Ling-Ling Lee, International Journal of Primatology, Vol. 22, No. 3, 2001, pp. 359-377