(1)Swain, M. (1995). Three functions of output in second language learning. In G. Cook, & B. Seidlhofer (Eds.), Principle and practice in applied linguistics: Studies in honour of H. G. Widdowson (pp.125-144). Oxford: Oxford University Press.(2)村野井仁(2006).『第二言語習得から見た効果的な英語学習法指導法』大修館書店