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Nickson, Robert Andrew. "Governance and the Revitalization of the Guaraní Language in Paraguay." Latin American Research Review 44, no. 3 (2009): 3-26. doi:10.1353/lar.0.0115. 

Watkins, Timothy, edited by Olsen, Dale A. and Sheehy, Daniel E. "Paraguay," The Garland Handbook of Latin American Music. Routledge, 2015.

"Reseña de nuestra polka paraguaya." ABC Color (Asunción, Paraguay), August 1, 2006. August 1, 2006. Accessed February 25, 2018. http://www.abc.com.py/edicion-impresa/suplementos/escolar/resena-de-nuestra-polka-paraguaya-921167.html.

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