KARHARMAN, Abdulselam; BAYANSALDUZ, Mehmet. INVESTIGATION OF THE EFFECT OF POSITIVE PERCEPTION AND MENTAL TOUGHNESS LEVELS ON MOTIVATION OF SUCCESS IN ELITE MOUNTAIN RUNNING ATHLETES. Acta Scientiae et Intellectus , [S. l.], v. 6, n. 2, p. 7–17, 2024. Disponível em: http://actaint.com/index.php/pub/article/view/198. Acesso em: 20 jul. 2024.