Hasibuan D, Situmorang A. Implentasi Customer Relationship Management Berbasis Web Pada Toko Sablon Medan. JTM [Internet]. 20 Desember 2020 [dikutip 19 April 2024];9(2):13-24. Tersedia pada: https://ejournal.stmik-time.ac.id/index.php/jurnalTIMES/article/view/631