Aprilia, Ariesya. “Customer Retention &Amp; Customer Relationship Marketing: Strategi Pemasaran Yang Potensial”. Jurnal Manajemen Maranatha 4, no. 1 (Maret 16, 2015). Diakses Mei 17, 2024. https://journal.maranatha.edu/index.php/jmm/article/view/99.