The quotative construction in Kwaza and its (de-)grammaticalisation (van der Voort 2002)
van der Voort, Hein. 2002. The quotative construction in Kwaza and its (de-)grammaticalisation. Mily Crevels, Simon van de Kerke, Sérgio Meira & Hein van der Voort (eds.), Current Studies on South American Languages [Indigenous Languages of Latin America, 3], 307-328. 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)
- Kwaza or Koaiá, an unclassified language of Rondônia, Brazil (van der Voort 2000)
- 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