Widyasari, Titiek. “Beban Pencemaran Sumber Limbah Di Sungai Code”. Jurnal Teknik Sipil 5, no. 2 (March 26, 2019): 144–154. Accessed January 18, 2025. http://224305.koshikahk.tech/index.php/jts/article/view/1319.