Ghanim M. The Effect of Problem-Based Learning Instructional Units on Acquiring the Kip-Up Skill on the Horizontal Bar. jope [انترنت]. 28 سبتمبر، 2025 [وثق 30 سبتمبر، 2025];37(3):917-24. موجود في: https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/2189