Tooru Kubo books & textbook
Kankū hikō : Dankai fūfu no tame no yōroppa ryokōjutsu
OÌ„saka : Seikosha, 2008. /2008-10-01 Tankobon Hardcover
isbn-10: 4921142289 / isbn-13: 9784921142285
Raten amerika deai no katachi
Tooru Shimizu; Wakako Yokoyama; Norihiro OÌ„kubo
Tōkyō : Keiō Gijuku Daigaku Shuppankai, 2010. /2010-03-01 Tankobon Softcover
isbn-10: 4766417232 / isbn-13: 9784766417234
Kokka to himitsu : Kakusareru kobunsho.
Shueisha. /2014-10-17 Paperback Shinsho
isbn-10: 4087207595 / isbn-13: 9784087207590
