Aymen Waleed Ahmed, and Dr. Thamir Mahmoud Thannoun. “Self-Compassion and Its Relationship to Sports Psychological Frustration of Football Club Players in Nineveh Governorate”. Modern Sport (May 31, 2021). Accessed May 4, 2024. https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/713.