| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ekuseru de seisaku hyoka: Sugoku yoku wakaru jissenteki tokei bunseki manyuaru. | 978-4-8115-7251-2 (4-8115-7251-3) | 2007 |
| Hyoka ronri: Hyokagaku no kiso. | 978-4-8115-7601-5 (4-8115-7601-2) | 2010 |
R. S. · R. Sussex · R Sykes · Rii Suzuki · Ryu Sasaki