Setiawan W, Arum Sari A, Hartanti D. SISTEM INFORMASI CUSTOMER RELATIONSHIP MANAGEMENT (CRM) UNTUK PENINGKATAN LOYALITAS PELANGGAN DI CAHAYA MANDIRI AUDIO & ELEKTRONIK. METHODIKA [Internet]. 2026 Mar. 31 [cited 2026 Apr. 28];12(1):55-9. Available from: https://ejurnal.methodist.ac.id/index.php/methodika/article/view/5486