Ibnu Luthfi Saud, Muhamad Nur, and Ervin Nurhayati. “Preozonasi Sebagai Pretreatment Air Baku: Studi Kasus Instalasi Pengolahan Air Minum (IPAM) Ngagel I Kota Surabaya”. Envirotek : Jurnal Ilmiah Teknik Lingkungan 15, no. 1 (April 28, 2023): 83–90. Accessed May 20, 2024. https://envirotek.upnjatim.ac.id/index.php/envirotek/article/view/225.