5. Sindicato dos Engenheiros da Bahia.Boletim Informativo ano VI, no. 24, (1987 June).

5. Sindicato dos Engenheiros da Bahia.Boletim Informativo ano VI, no. 24, (1987 June)., 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/372675 Accessed September 26, 2026.