AL HAKIM, Y. R. Relationship Marketing and Sustainable Brand Loyalty Formation. International Journal of Service Science, Management, Engineering, and Technology, [S. l.], v. 7, n. 2, p. 58–66, 2025. Disponível em: http://ejournalisse.com/index.php/isse/article/view/241. Acesso em: 12 sep. 2026.