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) "Duggan, Sagano and Yoneda, Sakiko",Challenges and Proposals to Enhance Japanese University Students’ English Proficiency and Learning Motivation,言語文化論叢 = Studies of Language and Culture,1342-7172,2016-03-30,2016-03-30,20,,1-27,https://cir.nii.ac.jp/crid/1050001335989679232,