Lase, F. L. P., H. Gulo, M. S. D. Mendrofa, and E. Telaumbanua. “Pengaruh Customer Relationship Management (CRM) Terhadap Customer Loyalty Pada Abraham Motor Gunungsitoli”. ProBisnis : Jurnal Manajemen, vol. 17, no. 4, Sept. 2026, pp. 2490-01, https://ejournal.joninstitute.org/index.php/ProBisnis/article/view/1703.