1.Tribuna de Debates 1 [VI Congresso (Extraordinário) do Partido Comunista do Brasil], (1981 February).

1.Tribuna de Debates 1 [VI Congresso (Extraordinário) do Partido Comunista do Brasil], (1981 February)., Box: 12. 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/373357 Accessed September 26, 2026.