[1]
Khairullah, M.F.A., Wahyuni, I.R., Amalia, V. and Fathar, I.R. 2026. NaOH-Activated Fly Ash Adsorbent in Copper(II) Metal Ion Removal from Laboratory Wastewater. Envirotek : Jurnal Ilmiah Teknik Lingkungan. 18, 2 (Oct. 2026), 54–59. DOI:https://doi.org/10.33005/envirotek.v18i2.2356.