1[1]Holec H.Autonomy in Foreign Language Learning[M].Oxford:Pergamon,1981.
2[2]Little D.Language Awareness and the Autonomous Language Learner[J].Language Awareness,1997,(6).
3[3]Zimmerman B.J.Self-regulated Learning and Academic Achievtment an Overview[J].Educational Psychologist,25(1):1-26.1990.
4[4]Ryan.R.M.The Nature of self in Autonomy and Relatedness[C].In J.Strauss etal.(eds.).1991.The self:Interdisciplinary Approaches.New York:Springer,1991.
