Kurniawan, H., & Fadillah, N. . (2025). The Effect of pH Variations and Aluminum Sulfate Coagulant Dosage on Reducing Turbidity in Salupangkang Tua River Water. Journal of Green Chemical and Environmental Engineering, 1(1), 20-27. https://doi.org/10.63288/jgcee.v1i1.3