| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| non documentary sources | 0.99 | 0.1 | 674 | 18 | 23 |
| non | 0.63 | 0.1 | 2194 | 29 | 3 |
| documentary | 1.82 | 0.3 | 8483 | 29 | 11 |
| sources | 1.61 | 0.7 | 46 | 11 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| non documentary sources | 0.8 | 0.7 | 3494 | 10 |
| non documentary sources of information | 1.05 | 0.6 | 627 | 44 |
| documentary and non documentary sources | 0.51 | 0.8 | 5685 | 76 |
