Sevira , I.C. et al. 2026. Maintain Customer Loyalty with Customer Relationship Management Approach: A Study of PT Fast Food Indonesia Tbk Surabaya Division. International Journal of Business and Management Technology in Society. 3, 1 (Jan. 2026), 42–51. DOI:https://doi.org/10.12962/j30254256.v3i1.7857.