Toshiaki Takizawa

1961

• "Hajōsei" to "chiikiteki hakōsei" o tomonatte susumu jinkō genshō
• "Shūgyō jinkō piramiddo" de uranau kongo 10-nend no chiiki sangyō no hikaku yūisei
• Jinkō genshō jidai ni okeru kigyō shūekiryoku kōjō no kanōsei