Khalid Shakir, Ahmed Kadhim Abdul-kareem, & Ameen Salih Atia. (2019). The Most Important Emotional Determinants and Their Relationship to the Spirit of Challenge Among Advanced Handball Players in Babil Governorate Clubs. Modern Sport, 18(3), 261-270. https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1484