RANKING FACTORS AFFECTING OF QUALITY OF SERVICES TO TELECOM CUSTOMERS IN ISFAHAN. Singaporean Journal of Business Economics and Management, [S. l.], v. 3, n. (7), p. 151–157, 2015. Disponível em: https://www.singaporeanjbem.com/index.php/SJBEM/article/view/269. Acesso em: 16 jul. 2026.