| Keyword | CPC | PCC | Volume | Score |
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| solar power ebooks free download | 0.9 | 0.3 | 3649 | 86 |
| solar power books free download | 1.65 | 0.1 | 7994 | 27 |
| solar energy books free download | 0.45 | 0.7 | 9343 | 58 |
| solar energy books free download pdf | 0.61 | 0.3 | 9937 | 23 |
| free books on solar energy | 0.39 | 1 | 6862 | 35 |
| solar power software free download | 1.25 | 0.4 | 2529 | 73 |
| solar power books pdf | 1.96 | 0.4 | 3333 | 65 |
| solar power software download | 0.48 | 0.7 | 1996 | 61 |
| books on solar power | 1.78 | 0.7 | 7001 | 61 |
| solar energy pdf download | 0.78 | 0.7 | 4205 | 97 |
| solar power system books | 0.81 | 0.4 | 6355 | 80 |
| solar system book pdf free download | 1.16 | 0.7 | 4467 | 98 |
| solar energy books pdf | 0.93 | 0.8 | 24 | 35 |
| books for solar energy | 0.82 | 0.5 | 525 | 74 |
| books on solar power systems | 0.81 | 0.6 | 7763 | 9 |
| solar energy ppt free download | 1.96 | 0.8 | 7204 | 23 |
| books on solar power installation | 1.23 | 0.2 | 1476 | 24 |
| solar energy books for students | 1.99 | 0.9 | 5095 | 39 |
| solar energy books for professionals | 0.7 | 1 | 8980 | 21 |
