Nur Aisyaa Ayop, et al. “The Pontential of Using Citrullus Lanatus, Moringa Oleifera And Hibiscus As Natural Coagulant for Wastewater Treatment”. Multidisciplinary Applied Research and Innovation, vol. 5, no. 2, May 2024, pp. 93-99, https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/13760.