KHAIRUDIN, Faisal; SARTANA, Bruri Bruri Trya. IMPLEMENTASI ANALISA DAN PERANCANGAN SISTEM DENGAN KONSEP ELECTRONIC CUSTOMER RELATIONSHIP MANAGEMENT (E-CRM) SMK PUSPITA PERSADA JAKARTA. IDEALIS : InDonEsiA journaL Information System, [S. l.], v. 2, n. 2, p. 158–166, 2019. Disponível em: https://jom.fti.budiluhur.ac.id/IDEALIS/article/view/1065. Acesso em: 11 mar. 2026.