Marketing strategies in micro-enterprises in the face of the Covid-19 contingency in Ciudad juárez, Mexico: a qualitative study. Revista de Investigaciones Universidad del Quindío, [S. l.], v. 33, n. S1, p. 19–31, 2021. DOI: 10.33975/riuq.vol33nS1.480. Disponível em: https://revistas.uniquindio.edu.co/ojs/index.php/riuq/article/view/480. Acesso em: 25 jun. 2026.