The Adsorption Efficiency of Lead From Post-Tin Mining Water using Nanomagnetic Fe3O4/Chitosan Portunus pelagicus shells. Stannum [Internet]. 2019 Oct. 15 [cited 2026 Jun. 4];1(1):25-8. Available from: https://journal.ubb.ac.id/index.php/stannum/article/view/1271