Hiroshi Nakai

• Dai 25-kai Tentai Rikigaku Kenkyūkai shūroku
• Dai 26-kai Tentai Rikigaku Kenkyūkai shūroku
• Dai 27-kai Tentai Rikigaku Kenkyūkai shūroku
• Dai 29-kai Tentai Rikigaku Kenkyūkai shūroku