| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Japanese Grammar for JLPT N5: Master the Japanese Language Proficiency Test N5 | 978-1-0774-6358-5 (1-0774-6358-8) | 2019 | Yumi Boutwell |
| Japanese Reading for JLPT N5: Master the Japanese Language Proficiency Test N5 | 978-1-6778-8839-9 (1-6778-8839-3) | 2019 | " |
C B · Clay Boutwell · J.B. · J. Boutwell · J C · John B. · John C. · John Clay