Gunma-ken Kyōiku Iinkai. Bunkazai Hogoka

• "Kashiwagura Ōsawa iseki" hakkutsu chōsa hōkokusho
• Azuma no shokaidō
• Butai, Nishiōmuro Maruyama
• Furudo, Kiryūdō
• Gunma no yanefuki to kabenuri
• Gunma-ken no minʼyō
• Gunma-ken no shiseki
• Higashihirai kofungun
• Jikkoku Kaidō
• Kaminishihara, Mukaihara, Yatsu
• Kanʼetsu jidōshadō (Niigatasen) chiiki maizō bunkazai hakkutsu chōsa hōkokusho
• Kinkyū bunkazai chōsa hōkokusho, Kawamagari iseki Higashikuden kofun