RANKING FACTORS AFFECTING OF QUALITY OF SERVICES TO TELECOM CUSTOMERS IN ISFAHAN. Singaporean Journal of Business Economics and Management, [S. l.], v. 3, n. (10), p. 53–58, 2015. Disponível em: https://singaporeanjbem.com/index.php/SJBEM/article/view/284. Acesso em: 6 jul. 2026.