PFAU, Christa; BARTHA, Éva; BÁCSNÉ BÁBA , Éva; SZABÓNÉ SZŐKE, Réka; MÜLLER, Anetta. Survey of the Service Offer of Fitness Clubs for Group Classes in Debrecen . International Journal of Engineering and Management Sciences, [S. l.], v. 6, n. 2, p. 35–48, 2021. DOI: 10.21791/IJEMS.2021.2.4. Disponível em: https://ojs.lib.unideb.hu/IJEMS/article/view/9341. Acesso em: 21 nov. 2024.