Ly, Ha, An The An, Ha Thi Nguyen, & Bang Nguyen Tran. " RISK ASSESSMENT OF NITRAT CONTAMINATED IN GROUNDWATER IN GIAO THUY DISTRICT, NAMDINH PROVINCE, VIETNAM." International Journal of Biosciences and Biotechnology [Online], 10.1 (2022): 37-50. Web. 15 Oct. 2025