| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| different types of historical sources | 1.26 | 0.5 | 1856 | 93 | 37 |
| different | 1.68 | 0.6 | 2547 | 19 | 9 |
| types | 0.28 | 0.9 | 8768 | 25 | 5 |
| of | 0.38 | 1 | 7948 | 82 | 2 |
| historical | 1.15 | 0.6 | 5652 | 18 | 10 |
| sources | 0.57 | 0.6 | 8580 | 95 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| different types of historical sources | 1.81 | 0.1 | 4789 | 85 |
