7Alptekin, C. 2010. Redefining multicompetence for bilingualism and ELF [J]. International Journal of Applied Linguistics 20.. 95-110.
8Brumfit, C. 2001. Individual Freedom in Language Teaching: Helping Learners to Develop a Dialect of Their Own [M]. Oxford: OUP.
9Ferguson, G. 2010. Issues in researching English as a lingua franca .. A conceptual enquiry [J]. International Journal of Applied Linguistics 19 :117-135.
10Jenkins, J. 2006. Current perspectives on teaching world Englishes and English as a lingua franca [J]. TESOL Quarterly 40.. 157-158.
