Tüfekçi, Şakir, and H. Böke. “Examination of the Perceptions of Self-Sufficiency and Burnout Levels of Students of the Sports Science Faculty During the COVID-19 Pandemic”. Physical Education of Students, vol. 25, no. 1, Feb. 2021, pp. 28-35, doi:10.15561/20755279.2021.0104.