سعدي ابراهيم ح. Effect of Suggested Training Program to Develop Ability to Relax on Some Physiological and Physical Variables Biochenmatic and 400M Running. BERJ [Internet]. 2007 Jan. 1 [cited 2025 Oct. 26];3(1):39-66. Available from: https://stats.uomosul.edu.iq/index.php/berj/article/view/39808