Dr. Hazem Ali Ghazl. “THE IMPACT OF PROGRAMMED LEARNING STRATEGY USING EDUCATIONAL MEANS (AUDIO-VISUAL) IN LEARNING SOME VOLLEYBALL SKILLS FOR STUDENTS”. Galaxy International Interdisciplinary Research Journal, vol. 11, no. 8, Aug. 2023, pp. 290-9, https://internationaljournals.co.in/index.php/giirj/article/view/4350.