Masao Sasakura

1906 – 1978

• Antō-shō Kanjin-ken Seikankōshi muentan (Kanjin muentankō) gaisa hōkoku
• Chaharu-shō tokubetsu chōsa hōkoku (Dainihan)
• Chishitsu kōsan chōsa yori mitaru Soren no gijutsu suijun
• Hokkaidō kōzan shisatsuki
• Hokubu Chōsen no kōgyō shisatsu hōkoku
• Kantō-shō Konshun tankō gaisa hōkoku
• Niigata-ken Wakigawa kōzan (suienkō, jūsekikō) chishitsu chōsa hōkoku