ÇİMEN, E. “THE RELATIONSHIP BETWEEN THE PROACTIVE PERSONALITY OF STUDENTS AND THE LEVELS OF MENTAL STRENGTH IN THE FACULTY OF SPORTS SCIENCES: THE CASE OF SULEYMAN DEMIREL UNIVERSITY”. Journal of ROL Sport Sciences, vol. 3, no. 1, Jan. 2022, pp. 1-10, doi:10.29228/roljournal.54210.