A. I. Al-Hafith, I., A. Chilmeran, T. and I. Othman, K. (2011) “Effect of Size and Surface Roughness of Cylindrical Weirs on Over Flow Characteristics”, Al-Rafidain Engineering Journal (AREJ), 19(2), pp. 77–89. doi: 10.33899/rengj.2011.27351.