レシガロ語
Casement, Sir Roger (1912). "Consul Casement's Report." In W.E. Hardenburg The Putumayo, the devil's paradise. Travels in the Peruvian Amazon regions and an account of the atrocities committed upon the Indians therein, pp. 264–338. London: T. Fisher Unwin.
Crevels, M. (2007). "South America." In C. Moseley (ed.), Encyclopedia of the world's endangered languages, pp. 103–196. London: Routledge.
Echeverri, Juan A. (1997). The people of the center of the world. A study in culture, history and orality in the Colombian Amazon.