Nguyen, T. and Nguyen, T. 2016. Evaluation of arsen in surface water and groundwater layers in the Cat Tien district of the Lam Dong province. Science and Technology Development Journal. 19, 3 (Sep. 2016), 99-107. DOI:https://doi.org/https://doi.org/10.32508/stdj.v19i3.469.