Mistikaweni, Debbie, and Lauw Li Hin. “PENERAPAN ELECTRONIC CUSTOMER RELATIONSHIP (E-CRM) DALAM UPAYA MENINGKATKAN LOYALITAS PELANGGAN DAN PELAYANAN TERHADAP PELANGGAN CATERING HANDAYANI”. IDEALIS : InDonEsiA journaL Information System 2, no. 2 (March 4, 2019): 72-77. Accessed December 22, 2024. https://jom.fti.budiluhur.ac.id/index.php/IDEALIS/article/view/1051.