| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| issn and isbn difference | 0.14 | 0.3 | 9698 | 68 | 24 |
| issn | 2 | 0.6 | 3559 | 76 | 4 |
| and | 0.36 | 0.2 | 501 | 28 | 3 |
| isbn | 1.55 | 0.3 | 2578 | 15 | 4 |
| difference | 1.12 | 0.9 | 1374 | 37 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| issn and isbn difference | 1.46 | 0.9 | 1105 | 8 |
| what is the difference between issn and isbn | 0.04 | 0.1 | 1859 | 9 |
| difference between issn and isbn number | 1.31 | 0.7 | 1671 | 26 |
| issn isbn difference | 0.38 | 0.1 | 9378 | 38 |
| difference between issn and isbn | 0.72 | 0.8 | 6305 | 77 |
