8. "Estado atual e perspectivas da luta interna-Aprigio." N.p.:, undated

8. "Estado atual e perspectivas da luta interna-Aprigio." N.p.:, undated, Box: 8. 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/372610 Accessed September 26, 2026.