| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| にほんご かんたん (SPEAK JAPANESE BOOK〈3〉A TEXTBOOK FOR YOUNG STUDENTS) nihongo kantan (SPEAK JAPANESE BOOK〈3〉A TEXTBOOK FOR YOUNG STUDENTS) | 978-4-327-38439-5 (4-327-38439-9) | 1997 |
| にほんご かんたん―SPEAK JAPANESE〈BOOK2〉 nihongo kantan―SPEAK JAPANESE〈BOOK2〉 | 978-4-327-38424-1 (4-327-38424-0) | 1991 |