| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free online world history textbook pdf | 1.52 | 0.7 | 8176 | 75 |
| online textbook world history | 1.77 | 0.2 | 2090 | 1 |
| world history book pdf free | 0.85 | 0.3 | 6790 | 13 |
| world history 1 textbook pdf | 0.12 | 0.8 | 5228 | 48 |
| world history book pdf download | 0.15 | 0.3 | 5835 | 15 |
| online world history book | 1.11 | 0.4 | 3351 | 50 |
| world history book pdf | 1.56 | 0.3 | 3256 | 56 |
| world history textbook free pdf | 1.78 | 0.9 | 6771 | 97 |
| world history textbook pdf download | 0.4 | 0.1 | 9116 | 15 |
| world history 1 pdf | 0.9 | 1 | 9630 | 91 |
| online world history textbook pdf | 0.95 | 0.5 | 431 | 35 |
| world history 1 book | 1.83 | 0.9 | 237 | 83 |
