| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| reference materials definition | 1.77 | 0.1 | 2293 | 75 | 30 |
| reference | 1.74 | 0.3 | 6773 | 48 | 9 |
| materials | 0.74 | 0.8 | 5939 | 36 | 9 |
| definition | 1.22 | 0.8 | 8061 | 61 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| reference materials definition | 1.53 | 0.4 | 2943 | 61 |
