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 "Keum, Jeong Yeon",Theoretical development of option pricing models and comparison of call option modelsby [i.e. models],,Korea Development Institute,1989,KDI working paper,,,,https://cir.nii.ac.jp/crid/1130000796274098560