* Henley, Paul; Marie-Claude Mattéi-Müller y Howard Reid (1996): "Cultural and linguistic affinities of the foraging people of North Amazonia: a new perspective"; "Antropológica "83: 3–37.
* Henley, Paul; Marie-Claude Mattéi-Müller y Howard Reid (1996): «Cultural and linguistic affinities of the foraging people of North Amazonia: a new perspective»; "Antropológica "83: 3-37.