Suryawan, Ryan Firdiansyah, Aminullah Assagaf, Suyanto, Sukesi, and Slamet Riyadi. 2025. “Enhancing Company Value through Customer Loyalty in Umrah Travel Agencies”. Jurnal Ilmiah Manajemen Kesatuan 13 (4):2781-94. https://doi.org/10.37641/jimkes.v13i4.3517.