DR. ANIL K. SINGH. Variations in Customer Loyalty: Study of Different Mobile Service Providers. International Journal of Management Studies (IJMS), [S. l.], v. 6, n. 2(1), p. 98–103, 2021. Disponível em: https://researchersworld.com/index.php/ijms/article/view/1091. Acesso em: 14 aug. 2024.