Sultanov, Murad, Tukezban Rustamova, Jamila Aliyeva, and Tamilla Karimova. “Competitive Anxiety in Soccer: Differences across Playing Roles and Sport Participation Levels”. Physical Education of Students 30, no. 3 (June 23, 2026): 157–166. Accessed July 3, 2026. https://sportedu.org.ua/index.php/PES/article/view/2477.