Rahmat, Siti Nazahiyah, and Zhe Hui Looi. “Monitoring Water Level and Water Quality in Rainwater Harvesting Tank Using Internet of Things (IoT) Device”. Journal of Advancement in Environmental Solution and Resource Recovery 2, no. 2 (December 28, 2022): 64–74. Accessed June 16, 2024. https://publisher.uthm.edu.my/ojs/index.php/jaesrr/article/view/12483.