Elijah, O., Tharek Abdul Rahman, C. Y. Leow, H. C. Yeen, M. A. Sarijari, A. Aris, J. Salleh, and T. H. Chua. 2018. “A Concept Paper on Smart River Monitoring System for Sustainability in River”. International Journal of Integrated Engineering 10 (7). https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/3482.