Sumiya, Toshio

1925

• "Kokusaika" jidai no Nihon kigyo
• Gekidō no sekai to kigyō keiei
• Gendai Nihon no kigyō keiei
• Gendai no rōdō to kanri
• Kokka to kigyo
• Nihon kabushiki-gaisha (Shin Nihon shinsho)
• Nihon keizai to rokudai kigyō shūdan
• Rōdō to kanri no keizai riron
• Sengo Nihon no kigyo keiei
• Sengo Nihon no kigyō keiei