7Krashen,S. D.Second Language Acquisition and Second Language Learning[]..1981
8McLaughlin,B.The Monitor Model: Some Method Ological Considerations[].Language Learning Journal.1978
9Nicholls,J. G.Achievement motivation: Conceptions of ability, subjective experience, task choice, and performance[].Psychological Review.1984
10Pintrich,P.,Stark,J. S.,Mets,L. A.A process-oriented view of student motivation and cognitions[].Improving teaching and learning through research (Vol ).1988