أ.م.د نصر خالد عبد الرزاق أ.م.د نصر خالد عبد الرزاق. “The Effectiveness of a Program Based on Progressive Educational Support in Improving Skill Performance and Deepening Knowledge of Some Basic Handball Skills”. Wasit Journal of Sports Sciences, vol. 25, no. الثالث, Sept. 2025, pp. 176-91, https://doi.org/10.31185/wjoss.1022.