Tuan, Nguyen Anh, Tran Minh Hoi, and Tran Van On. 2012. “Some Investigative and Scientific Research Results on Medicinal Plant Resources in the Xuan Son National Park, Phu Tho Province”. Academia Journal of Biology 31 (1):46-57. https://doi.org/10.15625/0866-7160/v31n1.798.