Long, Khuat Dang, Le Xuan Hue, Dang Thi Hoa, and Pham Huy Phong. “A Preliminary Study on Bees (Hemenoptera: Apoidea: Apiformes) from Northern and North Central Vietnam”. <i>Academia Journal of Biology</i> 34, no. 4 (January 13, 2013): 414–421. Accessed November 6, 2025. https://cip.vast.vn/vjbio/article/view/2676.