PHP研究所 (PHPkenkyuujo/kenkyuusho) · 草思社 (soushisha)
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 倒産社長、復活列伝 tousanshachou、fukkatsuretsuden | 978-4-7942-1523-9 (4-7942-1523-1) | 2006 |
| 倒産社長の告白 tousanshachounokokuhaku | 978-4-7942-1271-9 (4-7942-1271-2) | 2003 |
| 就活が変わる！優良中堅企業の見つけ方 shuukatsugaga/ | 978-4-569-80190-2 (4-569-80190-0) | 2012 |