FECZKO, J. S. Testing the quality of travel agencies. Turyzm/Tourism, [S. l.], v. 4, n. 1, p. 5–21, 1994. DOI: 10.18778/0867-5856.4.1.01. Disponível em: https://czasopisma.uni.lodz.pl/tourism/article/view/10591. Acesso em: 15 may. 2024.