VIJAYARAGUNATHAN, R.; JOHN, Kishore K. Customer Retention Among Telecom Service Providers – A Markov Model Analysis. International Journal of Research in Engineering, Science and Management, [S. l.], v. 5, n. 1, p. 51–55, 2022. Disponível em: https://journal.ijresm.com/index.php/ijresm/article/view/1661.. Acesso em: 8 may. 2024.