GORANCZEWSKI, B. Implementation of internal marketing in hotels – a case study of the Opole market. Studia Periegetica, [S. l.], v. 33, n. 1, p. 81–89, 2021. DOI: 10.5604/01.3001.0014.9465. Disponível em: https://journals.wsb.poznan.pl/index.php/sp/article/view/309. Acesso em: 3 maj. 2024.