F. Razak and M. Anjang Ahmad, “GIS Mapping of Water Quality Index for Sungai Benut, Simpang Renggam ”, rtcebe, vol. 4, no. 1, pp. 051–058, May 2023, Accessed: Jul. 21, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/3259