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
"Sivakumar, K. and Raj, S. P. and Marketing Science Institute","Quality-tier competition : impacts of the ""whether"" decision and the direction of price change : technical working paper",,Marketing Science Institute,1995,Report,,,,https://cir.nii.ac.jp/crid/1130000797057229952