5. "Sindicalismo: Pau d'Alho, S. Bernardo, Gdansk." Movimento, (1980 December 8-14).

5. "Sindicalismo: Pau d'Alho, S. Bernardo, Gdansk." Movimento, (1980 December 8-14)., Box: 25. 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/375620 Accessed September 26, 2026.