Truong Nguyen, An, Tam Minh Thi Le, Viet Quoc Tran, Viet Ngoc Truong, Luan Thanh Nguyen, Phi Hoang Tan Nguyen, and Trang Huyen Thi Nguyen. “Effect of Oxygen States in Horizontal Subsurface Flow Constructed Wetlands on the Removal of Organic Matter, Nutrients, Some Metals and Octylphenol”. Science and Technology Development Journal 20, no. K9 (April 15, 2019): 45-52. Accessed February 16, 2020.