Osman, Yehia A., Waled M. El-Senousy, Adel A. El-Morsi, and Mohammed K. Rashed. “Efficiency of Traditional Water Treatment Plant and Compact Units in Removing Viruses”. International Journal of Applied Sciences and Biotechnology 3, no. 3 (September 25, 2015): 528–536. Accessed April 24, 2024. https://www.nepjol.info/index.php/IJASBT/article/view/13332.