THE EFFECTIVENESS OF IMPROVING YOUNG VOLLEYBALL PLAYERS’ JUMPING PERFORMANCE THROUGH SPECIALIZED EXERCISES. SIT [Интернет]. 13 октябрь 2026 г. [цитируется по 13 октябрь 2026 г.];5(5):175-84. доступно на: https://jtsiti-journal.uz/index.php/sport/article/view/267