References
- Faltz, Leonard M. 1998. The Navajo Verb: a grammar for students and scholars. University of New Mexico. Albuquerque.
- Fernald & Perkins. 2020. A Grammar of Navajo. Navajo Language Academy manuscript.
- Kari, James M. 1973. Navajo Verb Prefix Phonology. Doctoral dissertation, University of New Mexico. [published (1976) by Garland.]
- Perkins, Ellavina. 1978. The Role of Word Order and Scope in the Interpretation of Navajo Sentences. Doctoral dissertation. University of Arizona.
- Perkins, Ellavina. 1982. The Extraposition of Relative Clauses in Navajo. International Journal of American Linguistics 40:202-46.
- Perkins, Ellavina. 2000. Navajo H-questions Revisited. In Fernald & Hale, eds. 129-140.
- Potter, Brian C. 1997. Wh/Indefinites and the Structure of the Clause in Western Apache. Doctoral disseration. UCLA.
- Sapir, Edward and Harry Hoijer 1967. The phonology and morphology of the Navajo language. University of California Publications in Linguistics 50. Berkeley: University of California.
- Young, Robert W. 2000. The Navajo Verb System: an Overview. University of New Mexico Press. Albuquerque.
- Young, Robert W. and William Morgan, Sr. 1987. The Navajo Language: a grammar and colloquial dictionary. University of New Mexico Press. Albuquerque.
- Young, Robert W., William Morgan, Sr., and Sally Midgette. 1992. Analytical Lexicon of Navajo. University of New Mexico Press. Albuquerque.