Wicakso DR, Mirwan A, Agustin E, Nopembriani NF, Firdaus I, Fadillah M. Potential of silica from water treatment sludge modified with chitosan for Pb(II) and color adsorption in sasirangan waste solution. CST [Internet]. 2022Dec.28 [cited 2024Dec.18];7(2):188-93. Available from: https://cst.kipmi.or.id/journal/article/view/1041