Chu Thi Thu Hien, Tran Trung. STUDY ON ADSORPTION CAPACITY OF LEAD (II) IN SOLUTION BY COMPOSITE MATERIAL Fe3O4 -TEA RESIDUE. jst [Internet]. 2018Oct.10 [cited 2024Dec.22];19:34-7. Available from: http://tapchi.utehy.edu.vn/index.php/jst/article/view/85