Nagai, Kenʼichi

Kaisetsu Kodomo no kenri jōyaku

Kaisetsu Kodomo no kenri jōyaku

Year unknown Nagai, Kenʼichi and Takao Terawaki

Kenpō kara daigaku no genzai o tō

Kenpō kara daigaku no genzai o tō

Year unknown Nagai, Kenʼichi and Hisayasu Yakura

Kenpō kōgi

Kenpō kōgi

Year unknown

Kenpō rinen to seiji genshō

Kenpō rinen to seiji genshō

Year unknown

Kenpō to kyoikuhō

Kenpō to kyoikuhō

Year unknown

Kenpō to kyōiku jinken

Kenpō to kyōiku jinken

Year unknown

Kenpō to kyōiku kihonken

Kenpō to kyōiku kihonken

Year unknown

Kodomo no jinken daijiten

Kodomo no jinken daijiten

Year unknown Shōgo Ichikawa and Nagai, Kenʼichi

Kodomo no jinken-dokuhon

Kodomo no jinken-dokuhon

Year unknown Nagai, Kenʼichi and Toshio Ogawa

Kodomo no jinken to saiban

Year unknown

Kodomo no kenri jōyaku no kenkyū

Kodomo no kenri jōyaku no kenkyū

Year unknown

Kokumin no kyōikuken

Kokumin no kyōikuken

Year unknown

Kyōikuhō nyūmon

Kyōikuhō nyūmon

Year unknown

Kyōiku kankeihō

Kyōiku kankeihō

Year unknown

Miru wakaru Kyōiku kihonhō

Miru wakaru Kyōiku kihonhō

Year unknown

Nihon no gakujutsu gyōsei to daigaku

Nihon no gakujutsu gyōsei to daigaku

Year unknown

Sengo seiji to Nihonkoku Kenpō

Sengo seiji to Nihonkoku Kenpō

Year unknown

Shiryō Nihonkoku Kenpō

Shiryō Nihonkoku Kenpō

Year unknown Nagai, Kenʼichi and Nobuyoshi Toshitani

Shiryōshū kyōiku rinchō kyōiku ka...

Shiryōshū kyōiku rinchō kyōiku kaikaku

Year unknown Haruyoshi Ebihara and Nagai, Kenʼichi

Shiryōshū Rinkyōshin Kyōiku kaika...

Shiryōshū Rinkyōshin Kyōiku kaikaku no dōkō

Year unknown