2024. Comparison of Alum and Poly Aluminum Chloride Coagulant Performance on Turbidity and pH of Lematang Enim PDAM Raw Water. Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam. 21, 1 (May 2024), 30–38. DOI:https://doi.org/10.31851/sainmatika.v21i1.13749.