Azizah, Rifka Noor, Trian Saputri, and Wisnu Prayogo. “Identification of Sludge Production In Water Treatment Installations of Urban Drinking Water Companies”. Journal of Community Based Environmental Engineering and Management 6, no. 1 (March 26, 2022): 35–39. Accessed April 2, 2025. https://journal.unpas.ac.id/index.php/temali/article/view/5247.