Descriptive study on the use of communication tools in virtual Social Education courses at the National University of Distance Education (UNED) in Spain. Pulso. Revista de educación, [S. l.], n. 30, p. 55–74, 2007. DOI: 10.58265/pulso.4976. Disponível em: https://revistas.cardenalcisneros.es/pulso/article/view/4976. Acesso em: 21 may. 2026.