7Arai, K. What 'demotivates' language learners?: Qualita- tive study on demotivational factors and learners' reactions [ J]. Bulletin of Toyo Gakuen University,2004(12).
8Dornyei, Z. Demotivation in foreign language learning. Pa- per presented at the TESOL 1998 Congress [ R ]. Seattle, WA. 1998.
9Dornyei, Z. Motivational Strategies in the Language Clazs- room[ M ]. Cambridge : Cambridge University Press. 2001.
10Dornyei, Z. The Psychology of the Language Learner: Indi- vidual Differences in Second Language Acquisition[ M ]. Mah- wah, N J: Lawrence Erlbaum. 2005.