found:Ethnologue WWW site, Feb. 2, 2000(Toba, Qom, Toba Qom in Bolivia, Argentina, and Paraguay)
found:Voegelin lang.:p. 149 (Argentina)
found:Loukotka, C. Class. So. Am. Ind. lang.:p. 49 (Toba (Tocoit, Ntocowit, Dapicosique) Argentina, Bolivia)
found:Steward handbk. So. Am. Ind.:v. 1, p. 221 (Toba, Tocoytus, Natekebit, Natákebit, Nactocovit, Ntocouit, Ntokowit, Yncanabacte, Toco'it, Takshik)