Oka, Mitsuo

1920

• Inasaku no gijutsu to riron
• Bakuhan taiseika no shōnō keizai
• Hōken sonraku no kenkyū
• Hyakushō denki
• Kinsei nogyo keiei no tenkai
• Kinsei nōmin ikki no tenkai
• Nihon engyō no ayumi
• Nihon keizaishi
• Nihon keizaishi
• Sonraku sangyo no shiteki kozo
• Sonraku sangyō no shiteki kōzō