سعدي ابراهيم ح. Effect of Suggested Training Program to Develop Ability to Relax on Some Physiological and Physical Variables Biochenmatic and 400M Running. College of Basic Education Research Journal, [S. l.], v. 3, n. 1, p. 39–66, 2007. Disponível em: https://stats.uomosul.edu.iq/index.php/berj/article/view/39808. Acesso em: 26 oct. 2025.