Wulan Djari F, Asyfiradayati R. Optimizing Turbidity Reduction in Tofu Industry Wastewater Using Alum Coagulant. IJHP [Internet]. 2024 Nov. 26 [cited 2025 Jan. 24];4(4):581-5. Available from: https://ijhp.net/index.php/IJHP/article/view/358