REFERENCES
- Thurgood, Graham, and Randy Lapolla. 2003. The Sino-Tibetan languages. Richmond, Surrey: Curzon Press.
- Vajda, Edward. 2001. Yeniseian peuples and languages: A history of their study with an annotated bibliography and a source guide. Richmond, Surrey: Curzon Press.
- Vajda, Edward. 2003. “Ket verb structure in typological perspective.” Sprachtypologie und Universalienforschung 56.1/2: 55-92. Berlin: Akademie Verlag.
- van Driem, George. 1987. A grammar of Limbu. Berlin: Mouton.
- van Driem, George. 1992. The grammar of Dzongkha. Thimphu: Royal Government of Bhutan.
- van Driem, George. 1993. A grammar of Dumi. Berlin: Mouton de Gruyter.