Rahmawati, Anisa, and Feni Iranawati. “Perbandingan Kandungan Kromiun Dan Klorin Pada Outlet Limbah Pabrik Kertas Di Aliran Sungai Brantas, Gresik”. Environmental Pollution Journal 4, no. 2 (July 24, 2024): 1004–1012. Accessed January 26, 2026. https://ecotonjournal.id/index.php/epj/article/view/191.