Hikaku hakugengaku : ichimei nihongogaku ippan

Nihongogaku ippan

Hikaku shuukyougaku : ichimei shuukyougaku gairon

Hikaku shuukyou ippan

Ichidai shinkeihatsu nihongogaku hatsumou : ichimei kokugo youhougaku nyuumon

Yamato oozumou : ichimei nihon toyuu hanjou hikaku

Nichieigo hikaku kenkyuu

Nihongogaku shinron

Hikaku bungaku

Nihongogaku no hongen

Tabako saibaihou : nichibei hikaku ichimei gakuri ouyou jikken saibai hihou

Hikaku shuukyougaku

Hikaku shuukyougaku

Hikaku shuukyougaku

Hikaku kokuhougaku

Hikaku shinwagaku

Hikaku hasseigaku

Hikaku shuukyougaku

Hikaku shuukyougaku

Hikaku zaiseigaku

Hikaku zaiseigaku

Hikaku zaiseigaku

Hikaku zaiseigaku

Hikaku shinrigaku

Hikaku shuukyougaku