4Dornyei, Z. 1994. "Motivation and motivating in the foreign language classroom". Modern Language Journal 78/3:273 - 284.
5Gao, Y. 2002. "Productive bilingualism: 1 + 1 > 2". In D. W. C. So & G. M. Jones (eels.). Education and Society in Plurilingual Contexts. Brussels: VUB Brussels University Press.
6Gardner, R. C. 1985. Social Psychology and Second Language Learning: The Role of Attitudes and Motivation. London : Edward Arnold.
7Gardner, R. C. ,J. B. Day & P. D. Maclntyre. 1992. " Integrative motivation, induced anxiety, and language learning in a controUed environment". Studies in Second Language Acquisition 14/2 : 197 - 242.
8Gardner, R. C., P. F. Tremblay & A.M. Masgoret. 1997. "Towards a full model of second language learning: An empirical investigation". The Modern Language Journal 81/3 : 344 - 362.
9Gardner,R. C. & W. E. Lambert. 1972. Attitudes and Motivation in Second Language Learning. Rowley, Mass. :Newbury House.
10Lambert,W. E. 1974. "Culture and language as factors in learning and education. "In F. E. Aboud & R.D. Meade (eds.). Cultural Factors in Learning and Education. Bellingham, Washington: Fifth Western Washington Symposium on Learning.
