2Tuctor I.Teacher roles in the learner-centered Classroom [J]. ELT Journal, 1993, (47). 被引量：1
3Krashen SiSecond Language Acquisition and Second Language Learning[M].牛津:Pergamon,1981. 被引量：1
4Bishop G. Tree independent learning-an andragogical approach: giving control to the learner over choice of material and design of the study session[J ] Zanguang Learning Journal, 2006,07(33). 被引量：1
