1AI-Ansari, S. 1998. "Attitudinal and motivational variables in foreign language learning: a ease study of students in Bahrain". In W. W. Kelliny (eds.). Surveys in Linguistics and Language Teaching. Bern: Peterlang Publishers Inc.
2Au, S. Y. 1988. "A critical appraisal of Gardner' s social-psychological theory of second-language ( 1.2 ) learning". Language Learning 38 : 75 - 100.
3Brown, H. D. 1987. Principles of Language Learning and Teaching. New Jersey: Prentice-hall Inc.
4Buratall, C. 1975. "French in the primary school: the British experiment". Canadian Modern Language Review 31:388 - 402.
5Child, D. 1981. Psychology and the Teacher. Oxford: Holt, Rinehart and Winston Ltd.
6Clement, R. 1980. " Ethnieity, contact, and communicative competence in a second language". In H. Giles, W.P. Robinson. & P. M. Smith (eds.). Language: Social Psychological Perspective. Oxford: Pergamon.
7Ehrman, M. and R. Oxford. 1989. "Effects of sex differences, career choice, and psychological type on adult language learning strategies ". Modern Language Journal 73 : 113.
8Ellis, R. 1994. The Study of Second Language Acquisition. Oxford: Oxford University Press.
9Gardner, R.C. 1985. Social Psychology and Second Language Learning. London: Edward Arnold Ltd.
10Gardner, R. C. and W. E. Lambert. 1959. " Motivational variables in second language acquisition". Canadian Journal of Psychology 13 : 266 - 72.
3Brown,D.Principles of Language Learning and Teaching[M]. New Jersey: Prentice-hall, Inc., 1987.
4Chapelle, C. and P. Green. Field independence/dependonce in secondlanguage acquisition rcsearch[J]Language Learing, 1992, (42): 47-83.
5Ehrman, E. V,Understanding Second Language Learning Difficulties[M].California: SAGE Publications Inc., 1996.
6Ellis, R. Classroom learning styles and effect on second lansuage acquisition: A study of two learners [J]. Syston, 1989, (7): 249-262.
7Gillette, B. Two successful language learners: An introspective approach[A]. In Farch,C. (ed.). Introspection in Second Language Research[C]. Avon: Multilingual Matters Ltd., 1987.
8Hansen, L. Field depandence-independance and language testing: Evidonce from six Pacific island cultures[J]. TESOL Quarterly, 1984,(18): 311-324.
9Jamleson, J. The cognitive styles of reflection/impulsivlty, and field independence/dependence and ESL success[J]. Modern Language Journal,1992, (76): 491-501.
10Larsen-Freeman, D. and M. Long. An lntroduction to Second Language Acquisition Research[M]. Essex: Longman Group UK Limited, 1991.