The Adsorption Efficiency of Lead From Post-Tin Mining Water using Nanomagnetic Fe3O4/Chitosan Portunus pelagicus shells. Stannum : Jurnal Sains dan Terapan Kimia, [S. l.], v. 1, n. 1, p. 25–28, 2019. DOI: 10.33019/jstk.v1i1.1271. Disponível em: https://journal.ubb.ac.id/index.php/stannum/article/view/1271. Acesso em: 4 jun. 2026.