PORTILLA LEÓN, Mtra. Martha de Jesús. Transition to the Knowledge Society. CPU-e, Revista de Investigación Educativa, [S. l.], n. 2, p. 206–210, 2012. DOI: 10.25009/cpue.v0i2.164. Disponível em: https://cpue.uv.mx/index.php/cpue/article/view/164. Acesso em: 14 dic. 2025.