3Christophel, D. , Gorham, J. A test-retest analysis of student motivation, teacher immediaey and perceived sources of motivation and demotivation in college classes [ J ]. Communication Education, 1995 (44) : 292-306.
4Dornyei, Z, Ema Ushioda. Teaching and Researching Motivation (Second Edition) [M]. London: Longman, 2011.
5Falout, J. , Maruyama, M. A comparative study of proficiency and learner demotivation[J]. The Language Teacher, 2004(28): 3-9.
6Gorham, J. , Christophel, D. Students' perception of teacher behaviors as motivating and demotivating factors in college classes [ J ]. Communication Quarterly, 1992(40) : 239-252.
7Hasegawa, A. Student demotivation in the foreign language classroom [J]. Takushoku Language Studies, 2004(107) : 119-136.
8Ikeno, O. Motivating and demotivating factors in foreign language learning: A preliminary investigation [J]. Journal of English Education Research, 2002(2) : 1-19.
9Kikuchi, K. , Sakai, H. An analysis of demotivatiors in the EFL classroom[J]. System, 2009 (37) : 57-69.
10Kojima, S. English learning demotivation in Japanese EFL students: Research in demotivational patterns from the qualitative research results of three different types of high schools[D]. Unpublished master thesis. Kwansei Gakuin University, Hyogo, Japan, 2004.
