Osamu Hiroi

Ronsō ima jānarisuto kyōiku

Ronsō ima jānarisuto kyōiku

2003

Ryūgen to dema no shakaigaku

Ryūgen to dema no shakaigaku

2001

Jōhō tsūshin to shakai shinri

Jōhō tsūshin to shakai shinri

2000

Saigai hōdō to shakai shinri

Saigai hōdō to shakai shinri

1987