7Berry, W. The Loss of the University [ M ]. San Francisco: North Point Press, 1987.
8Brinton, D. M., M. A. Snow & M. B. Wesche. Content- based Second Language Instruction [ M ]. New York: Harper & Row, 1989.
9Chumpavan, S. A Comparative Study of Two English as a Foreign Language (EFL) Programs : Non-content-based and Content-based at the University Level in Thailand [ D ]. Ph.D Dissertation. Normal: Illinois State University,2001.
10Cummins, J. Linguistic interdependence and the educational development of bilingual children [ J ]. Review of Education Research, 1979,49.
