Ramadhan, S. A., & 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), 167–175. Retrieved from https://jom.fti.budiluhur.ac.id/IDEALIS/article/view/2707