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) Michael Rube Redfield and Steven Mason,Foreign culture perspectives: comparing elective and required classes,大阪経大論集 = Journal of Osaka University of Economics,04747909,大阪 : 大阪経大学会,2007-07,58,1,315-322,https://cir.nii.ac.jp/crid/1520853833781447296,