KALININ R, BALÁZSI R, PÉNTEK I, HANȚIU I. RELATIONSHIP BETWEEN MENTAL TOUGHNESS, STRESS, ANXIETY AND DEPRESSION. Studia UBB Educatio Artis Gymn. [Internet]. 2021 Mar. 30 [cited 2024 Nov. 30];66(1):17-24. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbeducatio/article/view/475