Lestari, I., A. V. Yohana, F. Farid, and D. R. Gusti. “Preparation and Characterisation of Composite Magnetite Fe3O4-Activated Carbon As Adsorben of Phenol”. Jurnal Riset Kimia, vol. 13, no. 1, Mar. 2022, pp. 34-48, doi:10.25077/jrk.v13i1.442.