19. M. "Como estudar e participar do debate interno ao mesmo tempo." N.p.:, 1980 April 15.

19. M. "Como estudar e participar do debate interno ao mesmo tempo." N.p.:, 1980 April 15., Box: 4. 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/371893 Accessed September 27, 2026.