SURYANA, Nana; YULIAZMI, Yuliazmi. RANCANGAN E-CRM: DALAM UPAYA MENINGKATKAN LOYALITAS PELANGGAN STUDI KASUS PT. HASSANA BOGA SEJAHTERA. IDEALIS : InDonEsiA journaL Information System, [S. l.], v. 1, n. 1, p. 497–501, 2018. Disponível em: https://jom.fti.budiluhur.ac.id/IDEALIS/article/view/1252. Acesso em: 30 nov. 2025.