Wicakso, D. R., Mirwan, A., Agustin, E. ., Nopembriani, N. F. ., Firdaus, I. ., & Fadillah, M. . (2022). Potential of silica from water treatment sludge modified with chitosan for Pb(II) and color adsorption in sasirangan waste solution. Communications in Science and Technology, 7(2), 188–193. https://doi.org/10.21924/cst.7.2.2022.1041