Zidane Syah Putra, and Cindy Aisyah Hakim. “Analisis Efektivitas Instalansi Pengolahan Lumpur Tinja Kabupaten Nganjuk Untuk Menurunkan Kadar Polutan: Analysis of the Effectiveness of the Sludge Treatment Plant in Nganjuk Regency to Reduce Pollutant Levels”. Envirous 6, no. 2 (April 15, 2026): 32–40. Accessed April 18, 2026. https://envirous.upnjatim.ac.id/index.php/envirous/article/view/418.