ISBN 4571101562 books & textbook
Shōgai gakushū no riron : arata na pāsupekutibu
Yoshihiro Tatsuta; Toyohisa Inōe; Kumiko Iwasaki; Fuyuko Kanefuji; Tomoko Satō; Ryōgo Ogino
Tōkyō : Fukumura Shuppan, 2011. / Tankobon Hardcover
isbn-10: 4571101562 / isbn-13: 9784571101564
