Waleed Samir Hadi Al-Ardi, Mahmoud Al-Basyouni. The effectiveness of a training program using a The defensive wall device Multi-tasking to develop the accuracy of the direct free kick. ms [Internet]. 2019 Jun. 30 [cited 2025 Apr. 3];18(2):489-94. Available from: https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1620