RAKHMATILLAEV, M. S. IMPROVING THE EFFICIENCY OF FUNCTIONAL CONDITIONS OF 15-16-YEAR-OLD HANDBALL PLAYERS . Mental Enlightenment Scientific-Methodological Journal, [S. l.], v. 6, n. 04, p. 312–320, 2025. DOI: 10.37547/mesmj-V6-I4-32. Disponível em: https://mentaljournal-jspu.uz/index.php/mesmj/article/view/939. Acesso em: 22 jul. 2025.