SALAS LUZURIAGA, E. A study of the Campaign "First Ecuador" and its impact on the national market. Espirales Revista Multidisciplinaria de investigación, [S. l.], v. 2, n. e, p. 1–12, 2019. DOI: 10.31876/er.v3i27.550. Disponível em: https://revistaespirales.consultorioampuero.com/index.php/es/article/view/550. Acesso em: 22 apr. 2026.