N. S. A. . Mohd Zamri and S. N. . Rahmat, “Self-Reliant Rainwater Harvesting System Guidelines (RWHS) for Non-Potable Water Usages”, rtcebe, vol. 2, no. 1, pp. 665–672, Jun. 2021, Accessed: Jul. 01, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/1305