FILIP, A.; VOINEA, L. Understanding the Processes of Customer Acquisition, Customer Retention and Customer Relationship Development. International Journal of Economic Practices and Theories, [S. l.], v. 2, n. 2, p. 62-67, 2012. Disponível em: http://ijept.eu/index.php/ijept/article/view/understanding_the_processes_of_customer_acquisition%2C_customer_. Acesso em: 27 apr. 2025.