RAHMAN, S M Asif Ur; MASOOM, Muhammad Rehan. Effects of Relationship Marketing on Customer Retention and Competitive Advantage: A Case Study on Grameen Phone Ltd. Asian Business Review, Dhaka, Bangladesh, v. 1, n. 2, p. 97–102, 2012. DOI: 10.18034/abr.v1i2.126. Disponível em: https://www.abc.us.org/ojs/index.php/abr/article/view/126. Acesso em: 4 jul. 2025.