Duy, Nguyen Dinh, Dang Ngoc Can, Le Trong Trai, Le Van Ninh, Tran Dang Hieu, Ha Van Nghia, Trinh Thi Mai, and Ly Ngoc Tu. “The Status of Southern White-Cheeked gibbon<i> (Nomascus Siki) < I> in Truong Son Key Biodiversity Area”. <i>Academia Journal of Biology</i> 42, no. 1 (March 19, 2020). Accessed January 13, 2026. https://vjes.vast.vn/vjbio/article/view/14762.