2019. The Adsorption Efficiency of Lead From Post-Tin Mining Water using Nanomagnetic Fe3O4/Chitosan Portunus pelagicus shells. Stannum : Jurnal Sains dan Terapan Kimia. 1, 1 (Oct. 2019), 25–28. DOI:https://doi.org/10.33019/jstk.v1i1.1271.