Tōkyō Bunkazai Kenkyūjo. Tōhoku Chihō Taiheiyō Oki Jishin Hisai Bunkazai tō Kyūen Iinkai

• Tōhoku Chihō Taiheiyō Oki Jishin Hisai Bunkazai tō Kyūen Iinkai Heisei 23-nendo katsudō hōkokusho
• Tōhoku Chihō Taiheiyō Oki Jishin Hisai Bunkazai tō Kyūen Iinkai Heisei 24-nendo katsudō hōkokusho