shilkam A, Kamas R, Shhaab G. The effect of blended learning with sequential and random exercises in learning the skills of setting and receiving the volleyball serve for students. jope [انترنت]. 28 ديسمبر، 2025 [وثق 4 يناير، 2026];37(4):1280-93. موجود في: https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/2218