Most Used Titles in Class TA1.P66
| Rank | TITLE | Lib | Uses | Year |
| 1 | The Professional engineer | UNCA | ||
| 2 | The Professional engineer | UNCA | ||
| 3 | The Professional engineer | UNCA | ||
| 4 | The Professional engineer | UNCA | ||
| 5 | The Professional engineer | UNCA | ||
| 6 | The Professional engineer | UNCA | ||
| 7 | The Professional engineer | UNCA | ||
| 8 | The Professional engineer | UNCA | ||
| 9 | The Professional engineer | UNCA | ||
| 10 | The Professional engineer | UNCA | ||
| 11 | The Professional engineer | UNCA | ||
| 12 | The Professional engineer | UNCA |