9. Ptj. "Carta ao Cam. Venáncio." N.p.:, 1980 November 6.

9. Ptj. "Carta ao Cam. Venáncio." N.p.:, 1980 November 6., Box: 14. 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/373493 Accessed September 26, 2026.