LEŚNIEWSKA, Aleksandra. Personal trainer - occupational choices determinants. Quality in Sport, [S. l.], v. 3, n. 1, p. 18–26, 2017. DOI: 10.12775/QS.2017.002. Disponível em: https://apcz.umk.pl/QS/article/view/QS.2017.002. Acesso em: 8 jul. 2025.