Kurniawan H, Fadillah N. The Effect of pH Variations and Aluminum Sulfate Coagulant Dosage on Reducing Turbidity in Salupangkang Tua River Water. JGCEE [Internet]. 2025 Mar. 30 [cited 2025 Jul. 6];1(1):20-7. Available from: https://ejournal.candela.id/index.php/jgcee/article/view/6