2. Boletim Informativo do Sindicato dos Engenheiros da Bahia. Ano III n° 8, (1983 July-September).

2. Boletim Informativo do Sindicato dos Engenheiros da Bahia. Ano III n° 8, (1983 July-September)., Box: 24. 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/375466 Accessed September 26, 2026.