Books by Kiyoharu Hara
Netto ijime wa naze "itai" no
Netto ijime wa naze "itai" no ka
Sengo Nihon gakuryoku chōsa sh
Sengo Nihon gakuryoku chōsa shiryōshū
"Tsukaisuterareru wakamonotach
"Tsukaisuterareru wakamonotachi" wa kakusa shakai no shōchō ka
Jakunen shūrō mondai to gakury
Jakunen shūrō mondai to gakuryoku no hikaku kyōiku shakaigaku