4. Brito, J.M. "Alguns conceitos marxistas sobre o Parlamento e os partidos burgueses." N.p.:, 1981 June.

4. Brito, J.M. "Alguns conceitos marxistas sobre o Parlamento e os partidos burgueses." N.p.:, 1981 June., Box: 8. Eduardo Sarno Collection of Leftist Movements in Brazil, 2002-03. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/372559 Accessed September 25, 2026.