Azhar, Shah Christirani. “Land Use and River Water Quality Relationships in the Muda River Basin, Malaysia”. EDUCATUM Journal of Science, Mathematics and Technology 8, no. 1 (April 20, 2021): 36–48. Accessed March 28, 2024. https://ejournal.upsi.edu.my/index.php/EJSMT/article/view/4463.