STANCHEVA, V. Critical success factors for customer portfolio management. Global Journal of Business, Economics and Management: Current Issues, [S. l.], v. 7, n. 3, p. 285–290, 2018. DOI: 10.18844/gjbem.v7i3.2964. Disponível em: https://www.un-pub.eu/ojs/index.php/gjbem/article/view/2964. Acesso em: 15 may. 2024.