1.
Abdel Salam H. The effect of the concentration strategy for serious creativity on productive thinking, performance and accuracy of volleyball transmission skill among students. jope [Internet]. 2025 Mar. 28 [cited 2026 Jul. 5];37(1):1-16. Available from: https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/2229