RIZKY, F.; SUDIARTI, S.; ATIKA. Strategi Costumer Relationship Management Dalam Mempertahankan Pelanggan Pada Coffee Shop Grama Sphere. eCo-Fin, [S. l.], v. 5, n. 3, p. 247–259, 2023. DOI: 10.32877/ef.v5i3.951. Disponível em: https://jurnal.kdi.or.id/index.php/ef/article/view/951. Acesso em: 4 dec. 2024.