| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Brighter Mathematics | 978-962-342-393-9 | 1994 | |
| New Way Additional Mathematics, 3e | 978-962-342-462-2 | 1996 | M. S. Wong |
| New Way Additional Mathematics, Book 1, 4th Ed. | 978-962-990-621-4 | 2004 | " |
| New Way Additional Mathematics, Book 2, 4th Edition | 978-962-990-622-1 | 2004 | " |