Heikal, Ghada, Rabab Wagdy, and Gamal Eldidamony. “Bacteriophage Removal Using Upflow Biosand Filer: A Laboratory Study”. American Scientific Research Journal for Engineering, Technology, and Sciences 38, no. 1 (November 24, 2017): 118–125. Accessed April 28, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3621.