Akmal BOLTAYEV. “CHANGES IN THE PHYSICAL PERFORMANCE OF HIGHLY QUALIFIED VOLLEYBALL PLAYERS DURING TRAINING UNDER THE INFLUENCE OF VARIOUS LOADS ”. «ACTA NUUz», vol. 1, no. 1.11.1, Sept. 2026, pp. 79-81, http://journals.nuu.uz/index.php/actanuuz/article/view/14753.