Yasser Mohammed Hamoud, Huda Qahtan Tuma. The effect of the 30-m stair training for primary school students. ms [Internet]. 2019 Jun. 30 [cited 2025 Apr. 3];18(2):301-12. Available from: https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1595