Nguyen, Thanh Vinh, and Tong Thi Nhai. “Behavior and Ecology of <i> Macaca Leonina < I> (Mammalia: Primates) at Ha Noi Zoo, Vietnam”. Academia Journal of Biology 40, no. 3 (December 6, 2018). Accessed September 30, 2025. https://ajb.vast.vn/vjbio/article/view/11454.