| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free audio books on librivox | 1.19 | 0.2 | 1063 | 64 |
| librivox free audio books online | 0.2 | 0.9 | 458 | 87 |
| librivox audio books free download | 0.69 | 0.6 | 4608 | 78 |
| librivox audio books free app | 0.49 | 0.9 | 7030 | 48 |
| download free mp3 audio books from librivox | 1.31 | 0.9 | 9412 | 33 |
