6Bandura A. Social Foundations of Thoughts and Action : A Social Cognitive Theory [ M ]. Englewood Cliffs, NJ: Prentice-Hall, 1986.
7Deci E L & Ryan R M. Intrinsic Motivation and Self-determination in Human Behaviour [ M ]. New York : Plenum Press, 1985.
8Dickinson L & Wenden A (eds.). Special issue on autonomy [J]. System, 1995, 23(2).
9Higgs J. Planning learning experiences to promote autonomous learning [ A ]. In Boud D ( ed. ). Developing Student Autonomy [C]. London: Kogan Page, 1988. 40-58.
10Holec H. Autonomy in Foreign Language Learning [ M]. Oxford: Pergamon, 1981.