Ali Hussein Ali Al-Bahadly, and Karim Naima Rhan AL-Kaabi. 2020. “Effect of Hierarchical Fartelk Training on Speed Tolerance and Oxygen Intolerance of Aggressors (2000 M) Contraindications”. (Humanities, Social and Applied Sciences) Misan Journal of Academic Studies 18 (37), 84-89. http://misan-jas.com/index.php/ojs/article/view/113.