3. Com. Exec. do CC. "Aos CRs e COs (reservado)." N.p.:, 1989 April.

3. Com. Exec. do CC. "Aos CRs e COs (reservado)." N.p.:, 1989 April., Box: 15. 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/373665 Accessed September 26, 2026.