Fortunatus, Angela Eunike, and Margaretha Pink Berlianto. “Influencing Factors of Customers Brand Advocacy Starbucks”. Paradoks : Jurnal Ilmu Ekonomi 8, no. 2 (March 9, 2025): 708–722. Accessed July 20, 2025. https://jurnal.feb-umi.id/index.php/PARADOKS/article/view/1198.