STEFANIAK, Tadeusz; HARMACIŃSKI, Dariusz; GROFFIK, Bartosz; PAWLAK, Gabriel. Ocena preferowanych predyspozycji trenera personalnego = Rating preferred predisposition personal trainer. Journal of Education, Health and Sport, [S. l.], v. 6, n. 9, p. 224–235, 2016. Disponível em: https://apcz.umk.pl/JEHS/article/view/3812. Acesso em: 8 apr. 2025.