MARTÍNEZ CONTRERAS, M. S.; MORENO CASTRILLÓN, F. Textual Organization of Request Letters in Spanish and English and of Request Memoranda in Spanish: an Exploratory Study. Íkala, Revista de Lenguaje y Cultura, [S. l.], v. 9, n. 1, p. 83–102, 2004. DOI: 10.17533/udea.ikala.3143. Disponível em: https://revistas.udea.edu.co/index.php/ikala/article/view/3143. Acesso em: 9 mar. 2025.