著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Cho, David Chinhyung",Essays in finance and operations research,,Yushodo,1985,Yushodo current research series : unpublished thesis on economic essays,,,,https://cir.nii.ac.jp/crid/1130000795463446528