“Analisis Efektivitas IPAL Produksi Industri PT. X Di Sidoarjo  dalam Menurunkan Beban Pencemar Pada Air Limbah Industri”. Jurnal Serambi Engineering 11, no. 1 (January 11, 2026). Accessed May 16, 2026. http://jse.serambimekkah.id/index.php/jse/article/view/1519.