Chu Thi Thu Hien, and Tran Trung. “STUDY ON ADSORPTION CAPACITY OF LEAD (II) IN SOLUTION BY COMPOSITE MATERIAL Fe3O4 -TEA RESIDUE”. UTEHY Journal of Science and Technology 19 (October 10, 2018): 34-37. Accessed April 25, 2024. http://tapchi.utehy.edu.vn/index.php/jst/article/view/85.