Awaliah Rahmat. “Efektifitas Penurunan Kadar Pb (Timbal ) Limbah Cair Rumah Sakit Mengunakan Koagulan Alami”. Journal of Educational Innovation and Public Health 3, no. 1 (January 31, 2025): 112–121. Accessed February 28, 2026. https://prin.or.id/index.php/Innovation/article/view/3542.