急進大義
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Hellinger, Daniel (1996), “The Causa R and the Nuevo Sindicalismo in Venezuela”, Latin American Perspectives (Sage Publications, Inc.) 23 (3): 110-131
Nogueira-Budny, Daniel (2014), “Great Promise, but Poor Performance: Understanding the Collapse of Venezuela’s Causa Radical”, Journal of Politics in Latin America (German Institute for Global and Area Studies) 6 (1): 109-136
Webber, Jeffery R. (2010), “Venezuela under Chávez: The Prospects and Limitations of Twenty-First Century Socialism, 1999-2009”, Socialist Studies: the Journal of the Society for Socialist Studies (Socialist Studies) 6 (1): 11-44