IKHSAN, M. N.; MUHAMMAD, A.; MAHESSYA, R. A. Customer Relationship Management to Retain Customers with the Topsis Method. Journal of Computer Scine and Information Technology, [S. l.], v. 9, n. 2, p. 112–118, 2023. DOI: 10.35134/jcsitech.v9i2.73. Disponível em: https://jcsitech-upiyptk.org/ojs/index.php/jcsitech/article/view/73. Acesso em: 10 jun. 2026.