Ryūichi Kunitomo

1941

• Tōdori mo shiranai Ōkura kanryō no ginkō hyōka
• Bijinesuman shōronbun, hōkokusho no kakikata
• Chika sensō
• Doko made susumu Nihon no naka no kokusaika chizu
• Nihon keizai no jumyō
• Sonī, kyōi no dokusōryoku no himitsu
• 京セラ・稲森和夫の野望
• 関西型企業の未来戦略