The effect of some technical means in the proficient style to learn the skill of jumping on the jumping platform among the students of the Teachers Institute - Education Al-Karkh / second. cbej [Internet]. 2022 Dec. 11 [cited 2025 May 8];21(90):1021-32. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6935