Natalia, D., Asriany, Kaban, K.B. and Lamsir, S. 2026. The Influence of Social Media Engagement, Brand Authenticity, and Consumer Identity Expression on Brand Loyalty among Generation Z. Journal Management & Economics Review (JUMPER). 3, 10. 1 (Aug. 2026), 621–632. DOI:https://doi.org/10.59971/jumper.v3i10. 1.433.