The Paulo Freire's Digital Library Project. - Ed Porto Bezerra; Edna Gusmão de Góes Brennand (NDDL, 2001)

MARKER: a tool for building interactive applications for t-learning. - Sttiwe Washington Ferreira de Sousa; Ed Porto Bezerra; Ismênia Mangueira Soares Soares; Edna Gusmão de Góes Brennand (WebMedia, 2013)