G. Samudro, H. Samudro, and S. Mangkoedihardjo, “Wastewater Quality Determines the Quantity of Offsite Sanitation Based on Downstream Standards”, ijscet, vol. 14, no. 4, pp. 251–266, Dec. 2023, Accessed: May 20, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/13471