6Rifai N.A. Attitude,Motivation and Difficulties Involved in Learning the English Language and Factors That Affect Motivation in Learning It[J].Procedia - Social and Behavioral Sciences,2010,(2):5216-5227.
7Ozuturk G. University of Sunderland,Department of Lifelong Learning TESOL[J].Procedia-Social and Behavioral Sciences,2012,(46):424-430.
8D?rnyei Z.,Csize′r K.Ten Commandments for Motivating Language Learners:Results of An Empirical Study[J].Language Teaching Research,1998,(3):203-229.
9D?rnyei Z. Motivational Strategies in the Language Classroom[M].Cambridge:Cambridge University Press,2001.
10D?rnyei Z. Attitudes,Orientations and Motivations in Language Learning[M].Malden MA:Blackwell,2003.
