Shamsudin, Muhammad Norazmin, and Noor Aliza Ahmad. “The Effectiveness of Natural Luffa Sponge As A Rainwater Filter”. Recent Trends in Civil Engineering and Built Environment 3, no. 1 (January 17, 2022): 1068–1078. Accessed July 21, 2024. https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/3091.