| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Analysis of looking for the next wave of Internet business opportunities-network service model innovation | 978-80-18-26006-7 (80-18-26006-0) | 2000 |
| Contrarian breakout -2009 PC industry trend analysis and product development | 978-80-18-26007-4 (80-18-26007-9) | 2000 |