Minami Manshū Tetsudō Kabushiki Kaisha. Hokushi Jimukyoku. Chōsashitsu

• Daidō tankō o chūshin to suru kōboku birin zōsei ni kansuru chōsa taikō
• Hokushi kinzoku kōshō ni kansuru shiryō
• Hokushi ni okeru Mantetsu nōgyō kankei chōsa keika gaiyō
• Hokushi ringyō gaiyō
• Kitō no kinkō gaiyō
• Pekin shiei tojō setsuritsuan (kaiteian)
• Saiku busshi haikyū taisaku (an)
• Shina no suisan gyōsei narabini suisan jigyō kaihatsu ni kansuru shokeikaku