| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Signpost of cases learning - brush up tax law ISBN: 4881772724 | 978-4-88177-272-0 (4-88177-272-4) | 2011 |
| Understand the tax audit and tax procedures - close-up tax administrative law ISBN: 4881772783 | 978-4-88177-278-2 (4-88177-278-3) | 2012 |