Ryūzō Hara
Biro Bijan Yudaya minzoku jichishū no saikin jijō- Daiikkai Kyokutō Soren nōsanbutsu kotoni kokumotsu no kakukubetsu jukyū kankei suitei chōsa hōkoku ni taisuru shūsei hōkoku
- Kyokutō chihō Amūru-shū no kachiku chihōbyō
- Kyokutō chihō ni okeru 1936-nendo harumaki hanshu junbi
- Shiberia buyu kujo ni kansuru kenkyū
- Soren Kyokutō chihō ni okeru jūniku jukyū kankei chōsa
- Soren Kyokutō chihō no 1936-nen kamihanki nōgyō seiseki
- Soren Kyokutō chihō no 1936-nendo harumaki hanshu keikaku
- Soren Kyokutō chihō no 1936-nendo kokumotsu shūkakudaka chōsa
- Soren Kyokutō chihō no 1937-nendo harumaki hanshu seiseki
- Soren Kyokutō chihō no kokusan
- Soren MTS no saisansei ni kansuru ichi kōsatsu