Pradany, Adam Adi, and Fahrullah. “Implementasi Customer Relationship Management Dan Dampaknya Terhadap Citra Lembaga Pada Yayasan Nurul Hayat Surabaya”. Jurnal Ekonomika dan Bisnis Islam 3, no. 1 (April 30, 2020): 33–39. Accessed June 14, 2025. https://journal.unesa.ac.id/index.php/jei/article/view/26153.