“The Synthesis and Characterization Composite Fe3O4 Chitosan Clay Bangka: Synthesis and Characterization Composite Fe3O4 Chitosan Clay Bangka”. Stannum : Jurnal Sains Dan Terapan Kimia, vol. 2, no. 2, Oct. 2020, pp. 45-50, https://doi.org/10.33019/jstk.v2i2.1897.