Mantetsu Hokushi Keizai Chōsajo. Kankōhan

• Kahoku-shō Jungi-ken Sasei-son chikenshū
• Kahoku-shō Jungi-ken Sasei-son chiseki oyobi tochi kōnin ni kansuru shitsumon ōtō
• Kahoku-shō Jungi-ken Sasei-son sonminkan no tochi ni kansuru funsō jiken chōshusho
• Kahoku-shō Jungi-ken Sasei-son tochi no baibai
• Santō-shō Rekijō-ken Reisuikō-sō nōson kinʼyū oyobi torihiki ni kansuru shitsumon ōtō