フォーカス・オン・フォーム
Krashen, Stephen (2004). The Power of Reading, Second Edition. Littleton: Libraries Unlimited. ISBN 978-1-59158-169-7
Long, Michael (1991). “Focus on form: A design feature in language teaching methodology”. In De Bot, Kees; Ginsberg, Ralph; Kramsch, Claire. Foreign language research in cross-cultural perspective. Amsterdam: John Benjamins. pp. 39–52. ISBN 978-1-55619-345-3
Long, Michael; Robinson, Peter (1998). “Focus on form: Theory, research and practice”. In Doughty, Catherine; Williams, Jessica. Focus on form in classroom second language acquisition. Cambridge: Cambridge University Press.