WIDAWSKA-STANISZ, Agnieszka. Gamification in personnel management of sport – recreation service companies. Quality in Sport, [S. l.], v. 3, n. 1, p. 7–17, 2017. DOI: 10.12775/QS.2017.001. Disponível em: https://apcz.umk.pl/QS/article/view/QS.2017.001. Acesso em: 1 jul. 2025.