Nguyen, Thanh Vinh, and Tong Thi Nhai. “Behavior and Ecology of <i> Macaca Leonina < I> (Mammalia: Primates) at Ha Noi Zoo, Vietnam”. <i>Academia Journal of Biology</i> 40, no. 3 (December 6, 2018). Accessed April 4, 2026. https://cip.vast.vn/vjbio/article/view/11454.