| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Kaigai toshi nanatsu no hoho: Kyujukyupasento no nihonjin wa shiranai shosha ichipasento no chofuyuso ni manabu. | 978-4-8272-O73O-9 (4-8272-O73O-5) | 2012 |
Y. Tamagawa · Yasuaki Tamaki · Yasuko Thank · Yasushi Tamaoki · Yasushi Tanaka · Yoshihiko Tanaka · Yoshiki Tanaka · Yoshiki Tonogai · Yoshiko Tamagawa · Yukiko Tanaka