Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Ruegg, Rachael and Koyama, Dennis",Confidence in writing: the effect of feedback,言語教育研究,0918144X,千葉 : 神田外語大学,2010-11,21,,137-166,https://cir.nii.ac.jp/crid/1050564287787269376,