SOBKO А. The ration for 11–14 years old school children in a hiking trip . INTERNATIONAL SCIENTIFIC-PRACTICAL JOURNAL COMMODITIES AND MARKETS, [S. l.], v. 12, n. 2, p. 156–162, 2011. Disponível em: https://journals.knute.edu.ua/commodities-and-markets/article/view/1508. Acesso em: 22 dec. 2024.