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Author

Osamu Oba

5 books found

Cover of Kanseki yunyu no bunkashi

Kanseki yunyu no bunkashi

Osamu Oba · First published 1997

Cover of Kodai chusei ni okeru Nitchu kankeishi no kenkyu

Kodai chusei ni okeru Nitchu kankeishi no kenkyu

Osamu Oba · First published 1996

Cover of Kankan kenkyu

Kankan kenkyu

Osamu Oba · First published 1992

Cover of Mokkangaku nyumon

Mokkangaku nyumon

Osamu Oba · First published 1984

Cover of Shin Kan hōseishi no kenkyū

Shin Kan hōseishi no kenkyū

Osamu Oba · First published 1982