Tourist-cultural advertising of Old Havana, Cuba. Case study during 2021. Revista Ecos de la Academia, [S. l.], v. 7, n. 14, p. 20, 2022. DOI: 10.53358/ecosacademia.v7i14.567. Disponível em: //ojs.devsoftec.com/index.php/ecosacademia/article/view/567. Acesso em: 2 apr. 2026.