| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| English Essentials the Easy Way: The Rules of How and When to Use Words and Phrases | 978-967-978-822-8 (967-978-822-9) | 2010 |
| Mastering English The Easy Way: The All-In-One Guide to Basic English Grammar | 978-967-978-823-5 (967-978-823-7) | 2010 |