Холодний [Holodnij A.] О. І. The preconditions of perfection of work of the teachers on formation of health of the schoolboys. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 5-2(33), p. 129–131, 2012. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/21755. Acesso em: 23 dec. 2024.