Oktavianty, H., Sunardi, S. and Laksono, E.P. 2021. Optimization of Activated Charcoal Synthesis from Sugar Palm Shells for the Adsorption of Iron Ions in Batik Waste. CHEESA: Chemical Engineering Research Articles. 4, 2 (Dec. 2021), 109–118. DOI:https://doi.org/10.25273/cheesa.v4i2.9609.109-118.