ZULNAIDI YAACOB. Customer Oriented Service and Cost Effectiveness: A Trade-off Relationship?. Pakistan Journal of Commerce and Social Sciences, [S. l.], v. 7, n. 3, p. 545–554, 2013. Disponível em: https://jes.ac.pk/index.php/jes/article/view/521. Acesso em: 28 oct. 2026.