UMURKULOVA D, USMONOV A. MENTAL TOUGHNESS OF YOUNG TENNIS PLAYERS. METHODICAL METHODS OF ACHIEVING MENTAL STABILITY. NUUz [Internet]. 2024 Oct. 30 [cited 2025 Apr. 22];1(1.5.1):224-6. Available from: https://journals.nuu.uz/index.php/1/article/view/4850