Qalbi, Sania Imalia, and Ratna Meisa Dai. “Penerapan Customer Relationship Management Dalam Mempertahankan Customer Loyalty Pada PT. Karya Tetangga Tuku”. Jurnal Ekonomi Efektif 6, no. 2 (January 1, 2024): 296–310. Accessed October 4, 2024. https://openjournal.unpam.ac.id/index.php/JEE/article/view/37368.