Keiki wa meguru : infure keiki tenkan ni sonaeyo

Infure keiki wa dounaru

Infure keiki ron

Akusei infure ka senshou keiki ka : jihen wa nagabikuka

Infure keiki no shinkou to kabushiki

Keiki wa dounaru

Sengo ni sonaeyo

Oozora ni sonaeyo

Hakuka ni sonaeyo

Keiki to toushi : keiki wa dounaruka nani ni toushi subekika

Watakushi wa kou kangaeru : houkou tenkan no katei ni tsuite

Keiki tenkanki

Keiki wa itsu naoruka

Sonaeyo sora ni : kuushuu osorubeshi

Naze ni beikoku wa keiki ga yoika

Kokusai sendensen ni sonaeyo

Sensou keiki wa dounaruka

Sengo no keizai ni sonaeyo

Dai2 gunshuku kaigi ni sonaeyo

Keiki kaifuku no jisshouteki kenkyuu : keiki wa ikani shite kaifukusuruka

Chuuseishi tenkan chuunyuu ni yoru GaAs e no dōpingu ni kansuru kenkyuu

Sekai no keiki wa itsu bakuhatsusuruka

Tsuuka kaikaku ni sonaeyo

Honnen no keiki : nanmon sanseki no zaikai hatashite keiki wa deruka

Sekiro no chōsen ni sonaeyo