7Burger,S.& Chretien, M. (2001). The development of oral production in content- based second language teaching at the University of Ottawa. Canadian Modern Language Review, 58 ( 1 ), 84-- 102.
8Cummins, J. (2000). Immersion education for the millennium:What we have learned from 30 years of research on second language immersion, http://www, iteachilearn, com/cumminsimmersion2000, html ( Accessed 26/03/2005).