Minami Manshū Tetsudō Kabushiki Kaisha. Keizai Chōsakai. Kōgyōhan

• "Parupu kōgyō taisaku" setsujutsu hoi
• Denki jigyō taisaku yōkō
• Kantōshū nai kōgyō gensei to rōdō jijō, Kantōshū to okuchi to no kōgyō jōken no hikaku
• Ryūan kōgyō taisakuan (kaitei)