Baugh, A. C. (1957). A history of the English language (2nd ed.). New York: Appleton-Century-Crofts.
2.
Boas, F. (1911). Introduction. Handbook of American Indian languages. Washington, DC: Smithsonian Institution.
3.
Gellner, E. (1983). Nations and nationalism. London: Blackwell.
4.
Haugen, E. (1972). The ecology of language: Essays by Einar Haugen (A. S. Dil, Ed.). Stanford, CA: Stanford University Press.
5.
Hirsch, E. D. (1988). Cultural literacy: What every American needs to know. New York: Vintage.
6.
Johnston, W. B. , & Packer, A. (1987). Workforce 2000: Work and workers of the twenty-first century. Indianapolis, IN: Hudson Institute.
7.
National Center for Educational Statistics . (1988). Young adult literacy and schooling (Analysis Report). Washington, DC: U.S. Department of Education.
8.
Ogbu, J. (1982). Cultural discontinuity and schooling. Anthropology and Education Quarterly, 13, 290-307.
9.
Redfield, R. (1960). The little community and peasant society and culture. Chicago: Phoenix.
10.
Vachek, J. (1973). Written language. The Hague: Mouton.
