Thao, Nguyen, Nguyen Thi Thu Hien, Vuong Hong Nhat, Lai Vinh Cam, Nguyen Van Hong, Tran Thi Nhung, & Le Ba Bien. " The Current Situation of Heavy Metals in Agricultural Soil in Hai Hau, Nam Dinh." VNU Journal of Science: Earth and Environmental Sciences [Online], 38.2 (2022): n. pag. Web. 20 Mar. 2023