found: Work cat.: Howard, Irwin. Takuu dictionary, 1980.
found: Ethnologue, Jan. 10, 2008:(Takuu; alternate names: Tauu, Taku, Tau, Mortlock; Polynesian language; distinct from Nukumanu and Nukuria in Papua New Guinea and Ontong Java and Sikaiana in Solomon Islands, although very closely related; spoken in Mortlock Village, Takuu Atoll, Bougainville Province, Papua New Guinea)
found: Ruhlen world lang., 1987:p. 353 (Takuu; nuclear Polynesian, northern Samoic outlier)
found: Voegelin lang., 1977:p. 291 (Takuu; alternate names: Taku, Tauu, Tauʻ, Mortlocks; Polynesian language; spoken on Mortlock Island)
found: Language atlas of the Pacific area, 1981:p. 19 (Takuu; Polynesian language; spoken on Takuu Atoll)
found: Cappell, A. A linguistic survey of the southwestern Pacific, 1962:p. 170 (Taku, Taʻu; Polynesian language; spoken on Mortlock Island)
found: Ray, S.H. Polynesian languages of the Solomon Islands, 1916:p. 101 (Tauu) p. 99 (spoken on Tauu Atoll, Mortlock Islands)