URBAN, Wiesław. Service quality gaps and their role in service enterprises development. Technological and Economic Development of Economy, [S. l.], v. 15, n. 4, p. 631–645, 2009. DOI: 10.3846/1392-8619.2009.15.631-645. Disponível em: https://journals.vilniustech.lt/index.php/TEDE/article/view/6476. Acesso em: 12 may. 2025.