7McCroskey, J. , J. Fayer & V. Richmond. 1985. Don't speak to me in English: Communication apprehension in Puerto Rico [J]. Communication Quarterly 33: 185-92.
8Price, M. 1991. The subjective experience of foreign language anxiety: Interviews with high anxious students [A]. In E.Horwitz & D. Young (eds.). Language Anxiety: From theory and research to classroom implications [C]. Englewood Cliffs, NJ: Prentice Hall. Pp. 101-8.
9Sarason, I. 1978. The test anxiety scale: Concept and research [A]. In C. Spielberger & I. Sarason (eds.). Series in Clinical and Community Psychology [ M ]. Washington:Hemisphere Publishing Corporation. Pp. 193-216.
10Spielberger, D. 1966. Anxiety and Behavior [M]. New York:Academic Press.
