PREHATINI, Hesti Sri; AMARIA, Amaria. EFFECT OF ADDING CHITOSAN TO RICE HUSK ASH SILICA AS A CHITOSAN-SILICA ADSORBENT TO REDUCE Pb(II) IONS. Unesa Journal of Chemistry, [S. l.], v. 12, n. 2, p. 64–72, 2023. DOI: 10.26740/ujc.v12n2.p64-72. Disponível em: https://ejournal.unesa.ac.id/index.php/unesa-journal-of-chemistry/article/view/52768. Acesso em: 10 nov. 2025.