The methods of scientific research should not be classified either empirical or theoretical. Revista Universidad de Guayaquil, [S. l.], v. 123, n. 2, p. 57–72, 2016. DOI: 10.53591/rug.v123i2.410. Disponível em: https://revistas.ug.edu.ec/index.php/rug/article/view/224. Acesso em: 5 dec. 2025.