中経出版 (chuukeishuppan) · 青春出版社 (seishunshuppansha)
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Baka buka o tsukaikonasu gijutsu. | 978-4-8061-4393-2 (4-8061-4393-6) | 2012 |
| Nanisama na nihongo. | 978-4-413-04385-4 (4-413-04385-5) | 2013 |
Yôichi Higashi · Yoko Hasegawa · Yozo Hasegawa · Yuko Hasegawa · Yuko Higuchi