Adams, R.E.W.; Valdez, Fred (2001). “Río Azul (Petén, Guatemala)”. In Susan Toby Evans; David L. Webster. Archaeology of Ancient Mexico and Central America: An Encyclopedia. Garland Publishing, Inc. pp. 626. ISBN0815308876
Graham, Ian (2010). The Road to Ruins. University of Mexico Press. ISBN9780826347541
Witschey, Walter R. T. (2016). “Rio Azul”. In Walter R. T. Witschey. Encyclopedia of the Ancient Maya. Rowman & Littlefield. pp. 292-293. ISBN0759122865