5. Tribuna Operária. "Debate: Movimento sindical e a situação politica nacional." N.p.:, undated [ca. 1984 August]

5. Tribuna Operária. "Debate: Movimento sindical e a situação politica nacional." N.p.:, undated [ca. 1984 August], Box: 9. 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/372837 Accessed September 26, 2026.