25. "Ruy Fausto reflete sobre o alcance e limites da Dialética." [Book review of Fausto's Marx: Lógica e Política, volume 2.]Folha de S. Paulo, (1987 November 28).

25. "Ruy Fausto reflete sobre o alcance e limites da Dialética." [Book review of Fausto's Marx: Lógica e Política, volume 2.]Folha de S. Paulo, (1987 November 28)., 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/372147 Accessed September 26, 2026.