M.Hajy, Z. and M.M Al Hiyali, N. 2009. Comparative Study for physical efficiency for the players Northern teams of handball in the lieght of the level achievement. Al-Rafidain Journal For Sport Sciences. 15, 52 (Dec. 2009), 196–208. DOI:https://doi.org/10.33899/rajsport.2009.6223.