KRISTIANINGRUM, Susila; SISWANI, Endang Dwi; SULISTYANI, Sulistyani. MODIFICATION OF VOLCANIC ASH OF KELUD AS SELECTIVE ADSORBENT MATERIAL FOR Zn(II) AND Cr(VI) METAL IONS. Jurnal Sains Dasar, [S. l.], v. 7, n. 1, p. 35–43, 2018. DOI: 10.21831/jsd.v7i1.22246. Disponível em: https://journal.uny.ac.id/index.php/jsd/article/view/22246. Acesso em: 10 may. 2025.