Hale, K.; M. Krauss; L. J Watahomigie; A. Y Yamamoto; C. Craig; L. V.M Jeanne; N. C England (1992). "Endangered languages". Language. 68 (1): 1–42. doi:10.2307/416368. JSTOR416368.
handle.net
hdl.handle.net
Jeanne, LaVerne Masayesva (1978). Aspects of Hopi grammar(Thesis) (Thesis). Massachusetts Institute of Technology. hdl:1721.1/16325. Retrieved 2010-08-09.
jstor.org
Hale, K.; M. Krauss; L. J Watahomigie; A. Y Yamamoto; C. Craig; L. V.M Jeanne; N. C England (1992). "Endangered languages". Language. 68 (1): 1–42. doi:10.2307/416368. JSTOR416368.