MICHALSKA-DUDEK, Izabela; RAPACZ, Andrzej. The Loyalty Measurement Problems of Travel Agencies’ Customers in Poland. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 5, n. 4, p. 242–264, 2017. DOI: 10.18559/SOEP.2017.4.12. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3425. Acesso em: 3 sep. 2026.