ПУТЯТІНА, Г. Political and economic parameters of optimization of the fitness industry as a socio-natural system. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 1(69), p. 25–30, 2019. DOI: 10.15391/snsv.2019-1.004. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/157541. Acesso em: 3 may. 2024.