OCHILOV SH.J. WAYS TO DEVELOP SPEED OF MOVEMENT IN BACK ZONES IN 12-13 YEAR OLD VOLLEYBALL PLAYERS. FAN VA TA’LIM INTEGRATSIYASI (INTEGRATION OF SCIENCE AND EDUCATION), [S. l.], v. 1, n. 2, p. 61–68, 2024. Disponível em: http://journal.uzfi.uz/index.php/ISE/article/view/50. Acesso em: 9 may. 2025.