| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2005 | 978-89-955878-1-2 | unknown | Internet Love palpitating palpitating (Korean edition) |
| 2009 | 978-89-955878-2-9 | Hwang Geumgeowe | 100 problems in the elementary common sense test needs to catch (Korean edition) |