Khaled Mahmoud, Salwan, سلوان, Rabie Hazim Salman, and ربیع. “Effectiveness of Using the Gradual Progressive Style Associated With Instant Visual Feedback on the Technical Performance of Some Wrestling Handles”. Al-Rafidain Journal For Sport Sciences (RJSS) 21 (67):85-100. https://doi.org/10.33899/rajsport.1999.162904.