| Quality means survival | Prentice Hall | Tiada | 1997 | 0-13-626780-7 |
| Sundials : a simplified approach by means of the equatorial dial | John Baker | Tiada | 1969 | |
| Melaka historic tourism : visit historic Melaka means visit Malaysia | Kerajaan Negeri Melaka | Tiada | 2001 | 983-40310-0-9 |