ALMOHAIMMEED, Bader M. Internal service quality and external service quality using two versions of SERVQUAL scale: An empirical evidence from five malls in the capital city of Saudi Arabia. Business: Theory and Practice, [S. l.], v. 20, p. 158–169, 2019. DOI: 10.3846/btp.2019.15. Disponível em: https://journals.vilniustech.lt/index.php/BTP/article/view/10478. Acesso em: 9 may. 2025.