Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Alkali Activated Fly AshLita Darmayanti, Suprihanto Notodarmodjo, Enri Damanhuri and Rino R MuktiMATEC Web Conf., 147 (2018) 04007DOI: https://doi.org/10.1051/matecconf/201814704007
