Kara, Mehmet, Nuriye Şeyma Kara, and Murat Genç. “The Personality Structure and Mindfulness Levels of Football Players: Enneagram Theory”. Journal of ROL Sport Sciences 6, no. 2 (June 30, 2025): 250–266. Accessed July 3, 2025. https://rrpubs.com/index.php/rol/article/view/612.