XALMATOVA NASIBA BOZARBOYEVNA. MODERNIZATION OF THE SYSTEM FOR SELECTING AND PHYSICALLY TRAINING YOUNG HANDBALL PLAYERS. Research Focus International Scientific Journal, [S. l.], v. 4, n. 9, p. 109–112, 2025. DOI: 10.66073/researchfocus.v4i9.1773. Disponível em: https://refocus.uz/index.php/rf/article/view/1773. Acesso em: 7 aug. 2026.