21. Mat. "Plano de preparação da conferência." N.p.:, 1981 November 1.

21. Mat. "Plano de preparação da conferência." N.p.:, 1981 November 1., Box: 21. 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/374807 Accessed September 26, 2026.