Books by Wataru Ōya
Hokuō kara kita senkyōshi
Hokuō kara kita senkyōshi
Taiwan no sengo Nihon
Taiwan no sengo Nihon
Ōsaka no kindai
Ōsaka no kindai
Kangofutachi no nanpō sensen
Kangofutachi no nanpō sensen
Taiwan to Nihon
Taiwan to Nihon
Ōsaka Kawachi no kindai
Ōsaka Kawachi no kindai
Kitamura Kaneko
Kyōha Shintō to kindai Nihon
Kyōha Shintō to kindai Nihon
Kanno Suga to Isonokami Tsuyuk
Kanno Suga to Isonokami Tsuyuko