Zidane Syah Putra, 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 [Internet]. 2026Apr.15 [cited 2026Apr.18];6(2):32-40. Available from: https://envirous.upnjatim.ac.id/index.php/envirous/article/view/418