Suryawan, Ryan Firdiansyah, Kamsariaty Kamsariaty, Erni Pratiwi Perwitasari, Evaf Maulina, Alfi Maghfuriyah, and Tri Susilowati. “Digital Strategy Model in Strengthening Brand Image to Maintain Customer Loyalty (Case Study on Umrah and Hajj Travel Agency)”. East Asian Journal of Multidisciplinary Research 2, no. 12 (January 1, 2024): 5045–5056. Accessed September 19, 2024. https://journal.formosapublisher.org/index.php/eajmr/article/view/6960.