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) ,"The Pragmatic Aspects Re-visited : How much students understand 'sorry', 'must' and 'please'",明海大学外国語学部論集 17,,,2005,,,1-17,https://cir.nii.ac.jp/crid/1010000781803608462,