Kỳ, Nguyễn Việt, and Lê Thị Tuyết Vân. 2013. “Manganese Pollution in Ground Water of Pleistocene Aquifers in Ho Chi Minh City Area”. Vietnam Journal of Earth Sciences 35 (1):81-87. https://doi.org/10.15625/0866-7187/35/1/3043.