1.A Classe Operária ano XVII, no. 147 [Orgão Central do Partido Comunista do Brasil], (1981 May-June).

1.A Classe Operária ano XVII, no. 147 [Orgão Central do Partido Comunista do Brasil], (1981 May-June)., Box: 20, Folder: 5. 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/374596 Accessed September 26, 2026.