Edy Santosa FR, Atmoko AD, Mudjanarko SW. Index Risk of Sanitation (IRS) Modelling to Determine Domestic Waste Water System. ijscet. 2020;11(1):87-96. Accessed July 23, 2024. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/6231