4.SETS Boletim no. XIX N.p.:, 1988 February.

4.SETS Boletim no. XIX N.p.:, 1988 February., Box: 5. 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/372098 Accessed September 26, 2026.