SABRINA, Shellyana Kholifatul; WIBAWA, Berto Mulia. The Role of Gamification and Social Media Marketing on Brand Loyalty through Customer Engagement: A Case Study of Duolingo. JURNAL EKONOMI KREATIF DAN MANAJEMEN BISNIS DIGITAL, [S. l.], v. 4, n. 3, p. 560–578, 2026. DOI: 10.55047/jekombital.v4i3.1123. Disponível em: https://transpublika.co.id/ojs/index.php/JEKOMBITAL/article/view/1123. Acesso em: 24 mar. 2026.