Wicakso, D. R.; Mirwan, A.; Agustin, E. .; Nopembriani, N. F. .; 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 2022, 7, 188-193.