KRISTIANINGRUM, Susila; SISWANI, Endang Dwi; SUYANTA, Suyanta. MODIFICATION OF KELUD VOLCANIC ASH 2014 AS SELECTIVE ADSORBENT MATERIAL FOR COPPER(II) METAL ION. Jurnal Sains Dasar, [S. l.], v. 5, n. 1, p. 7–16, 2016. DOI: 10.21831/jsd.v5i1.12659. Disponível em: https://journal.uny.ac.id/index.php/jsd/article/view/12659. Acesso em: 10 may. 2025.