著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Ema Ushioda,"Language learning motivation, self and identity: current theoretical perspectives",Computer Assisted Language Learning,0958-8221,Informa UK Limited,2011-06-16,24,3,199-210,https://cir.nii.ac.jp/crid/1362825894191001088,https://doi.org/10.1080/09588221.2010.538701