Rusmana, G. “Analisis Penerapan Customer Relationship Management (CRM) Di Kopi Toko Tua”. Proceeding FRIMA (Festival Riset Ilmiah Manajemen Dan Akuntansi), Vol. 8, no. 1, Aug. 2025, pp. 1767-70, doi:10.55916/frima.v1i8.1171.