1. Prabhu, N. (1987). Second language pedagogy. Oxford: Oxford University Press
2. Ellis, R., & Rathbone, M. (1987). The acquisition of German in a classroom context. London: Ealing College of Higher Education
3. Ellis, R. (1984). The role of instruction in second language acquisition. In D. Singleton & D. Little (Eds.), Language learning in formal and informal contexts. IRAAL
4. The role of practice in classroom language learning;Ellis;Teanga,1988
5. Consciousness-raising and Universal Grammar