Ramadhan, S. A. and Irawan, H. (2019) “ANALISIS DAN DESAIN SISTEM ELECTRONIC CUSTOMER RELATIONSHIP MANAGEMENT (E-CRM) BERBASIS WEB GUNA MENINGKATKAN PELAYANAN BIMBINGAN BELAJAR”, IDEALIS : InDonEsiA journaL Information System, 2(6), pp. 167–175. Available at: https://jom.fti.budiluhur.ac.id/IDEALIS/article/view/2707 (Accessed: 16 April 2026).