WIDIASTUTI, Nurul. Adsorpsi Metilen Biru dan Kongo Merah pada Zeolit-X Hasil Sintesis dari Abu Dasar. SPECTA Journal of Technology, [S. l.], v. 3, n. 3, p. 20–35, 2019. DOI: 10.35718/specta.v3i3.157. Disponível em: https://journal.itk.ac.id/index.php/sjt/article/view/157. Acesso em: 6 nov. 2025.