Ikbal, Wim, et al. “Habitat Suitability of Javan Gibbon in Gunung Salak, West Java (Kesesuaian Habitat Owa Jawa Di Gunung Salak, Jawa Barat)”. Jurnal Manajemen Hutan Tropika, vol. 14, no. 1, Jan. 2011, pp. 1-8, https://journal.ipb.ac.id/jmht/article/view/2921.