Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
"Sakamaki,Masazumi",A Research about the Financial Characteristic of the Pure Holding Company : The Case of NTT and Softbank,年報財務管理研究,,日本財務管理学会,2014-05-01,,,103-109,https://cir.nii.ac.jp/crid/1542824520170336256,