Kamar Supardi, Izyan Hakimah, Nazirah Mohamad Abdullah, Badrul Hisham Ismail, Astina Tugi, and Yusuf D. Opaluwa. 2023. “Generating Water Quality Maps of Klang River Based on Geographic Information System (GIS) and Water Quality Index (WQI)”. International Journal of Sustainable Construction Engineering and Technology 14 (3): 408-18. https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/15331.