1. Alavi, Hamza. Problemas e perspectivas do socialismo. Rio de Janeiro: Zahar Editores. [Excerpt], undated

1. Alavi, Hamza. Problemas e perspectivas do socialismo. Rio de Janeiro: Zahar Editores. [Excerpt], undated, Box: 26. 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/375895 Accessed September 26, 2026.