Muhammad Dzulhelmi Muhammad Nasir, and Mohd Tajuddin Abdullah. “Distribution of the Sunda Colugo (Galeopterus Variegatus) in Malaysia (Peninsular, Sabah, Sarawak)”. Tropical Life Sciences Research, vol. 21, no. 2, Dec. 2010, pp. 69–83, https://ejournal.usm.my/tlsr/article/view/tlsr_vol21-no-2-2010_6.