Truong, Hai, Trang Nguyen, Huyen Tran, and Trang Tran. 2015. “Multi-Residue Analysis of Polar Pesticides in Surface Water and Sediment by High Performance Liquid Chromatography”. Science and Technology Development Journal 18 (2), 159-65. https://doi.org/https://doi.org/10.32508/stdj.v18i2.1181.