Edy Santosa, F. R. ., Atmoko, A. D. ., & Mudjanarko, S. W. . (2020). Index Risk of Sanitation (IRS) Modelling to Determine Domestic Waste Water System. International Journal of Sustainable Construction Engineering and Technology, 11(1), 87-96. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/6231