Rahayu, Sri. “Digital Marketing Strategies to Build Customer Loyalty: A Systematic Review of Sustainable Financial Benefits”. Atestasi : Jurnal Ilmiah Akuntansi 7, no. 1 (March 31, 2024): 792–806. Accessed August 1, 2025. https://jurnal.feb-umi.id/index.php/ATESTASI/article/view/951.