Yokohama-shi Maizō Bunkazai Chōsa Iinkai

• Chōzōji ura iseki chōsa hōkoku
• Seiraiji bochi ura iseki hakkutsu chōsa hōkoku
• Shiei Sugeta jūtaku chinai iseki hakkutsu chōsa hōkoku
• Shinmeidai iseki hakkutsu chōsa hōkoku
• Shōwa 55-nendo Nagaodai iseki chōsa hōkokusho
• Terayato iseki hakkutsu chōsa hōkoku
• Tsuzuki Shizen Kōen yoteichinai isekigun hakkutsu chōsa hōkoku