Kwaza or Koaiá, an unclassified language of Rondônia, Brazil (van der Voort 2000)
van der Voort, Hein. 2000. Kwaza or Koaiá, an unclassified language of Rondônia, Brazil. Hein van der Voort & Simon van de Kerke (eds.), Indigenous Languages of Lowland South America [Indigenous Languages of Latin America, 1], p. 39-52. Leiden: Research School of Asian, African, and Amerindian Studies (CNWS).
- Negação em kwazá (ou koaiá), uma língua viva de Rondônia (Voort 2002)
- Dicionário da língua Kwazá (Manso 2013)
- Documents et vocabulaires inédits de langues et de dialectes sud-américains (Loukotka 1963)
- The quotative construction in Kwaza and its (de-)grammaticalisation (van der Voort 2002)
- Theoretical and social implications of language documentation and description on the eve of destruction in Rondônia (Voort 2007)
- Reduplication and repetition of person markers in Guaporé isolates (Voort 2009)
- Kwazá
- Voort, Hein van der