KOWALSKI, S. Analysis of client communication system in local sport. Quality in Sport, [S. l.], v. 3, n. 2, p. 31–44, 2017. DOI: 10.12775/QS.2017.009. Disponível em: https://apcz.umk.pl/QS/article/view/QS.2017.009. Acesso em: 7 dec. 2021.