| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| types of history sources | 1.85 | 0.6 | 9041 | 37 | 24 |
| types | 1.8 | 0.2 | 6553 | 43 | 5 |
| of | 1.88 | 0.6 | 4091 | 48 | 2 |
| history | 0.86 | 0.2 | 8462 | 47 | 7 |
| sources | 0.29 | 0.1 | 8698 | 25 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| types of history sources | 1.39 | 0.8 | 2259 | 29 |
