Navab, Daneshi, Banejad Hossein, Pirtag Hamedany Reza, Daneshi Vahab, and Farokhi Maedeh. “Evaluate of Head Loss, Sediment Value and Copper Removal in Sand Media (rapid Sand Filter)”. International Journal of Environment 3, no. 2 (June 21, 2014): 276–286. Accessed April 24, 2024. https://www.nepjol.info/index.php/IJE/article/view/10641.