Hawder Dilshad Abdul-Qader. The effect of feedback (visual and written) through instant messaging and enhanced by assistance exercises to learn and retain the handstand skill. ms [Internet]. 2024 Mar. 30 [cited 2024 Dec. 22];23(1):0143-56. Available from: https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1309