Anh, Tran Tuan. “CHARACTERISTICS OF BO VA GOLD-SULPHIDE ORES, NORTHEAST VIETNAM”. <i>Vietnam Journal of Earth Sciences</i> 36, no. 3 (September 30, 2014): 193–203. Accessed November 8, 2025. http://vjes.vast.vn/jse/article/view/0866-7187.2014-3-023.