СТАДНИК, С.; СЕРЕДА, Н. The marketing analysis of competitiveness of fitness-clubs in Kharkiv. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 6(56), p. 120–124, 2016. DOI: 10.15391/snsv.2016-6.021. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/87695. Acesso em: 26 apr. 2024.