Thao, H. M., Hien, T. T., Anh, D. D., & Nga, P. T. (2017). Mineralogical characteristics of graphite ore from Bao Ha deposit, Lao Cai Province and proposing a wise use. Vietnam Journal of Earth Sciences, 39(4), 324–336. https://doi.org/10.15625/0866-7187/39/4/10728