HASAN, G.; ANDREW, A.; AGUSTIN, C.; SEREN , S.; ENJELIA, Y. Membangun CRM (Customer Relationship Management) Pada Usaha UMKM Bola Ubi di Kota Batam. eCo-Buss, [S. l.], v. 6, n. 1, p. 217–228, 2023. DOI: 10.32877/eb.v6i1.734. Disponível em: https://jurnal.kdi.or.id/index.php/eb/article/view/734. Acesso em: 19 jun. 2024.