| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| williams et al. 2007 | 0.41 | 0.6 | 3896 | 95 | 20 |
| williams | 1.99 | 1 | 2317 | 23 | 8 |
| et | 1.04 | 0.9 | 8091 | 72 | 2 |
| al. | 1.13 | 0.9 | 3195 | 6 | 3 |
| 2007 | 1.5 | 0.6 | 4894 | 88 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| williams et al. 2007 | 1.2 | 1 | 1169 | 17 |
| williams et al. 2010 | 0.23 | 0.2 | 9043 | 54 |
| williams et al. 2006 | 1.77 | 0.5 | 1446 | 37 |
| williams et al. 2009 | 1.44 | 0.2 | 1725 | 25 |
| williams et al. 2008 | 0.76 | 0.3 | 1813 | 71 |
| williams et al. 2000 | 1.37 | 0.7 | 6377 | 21 |
| williams et al. 2005 | 0.91 | 1 | 3335 | 70 |
| williams et al. 2017 | 0.77 | 1 | 4705 | 99 |
| williams et al. 2002 | 0.49 | 0.8 | 3192 | 75 |
| williams et al. 2001 | 1.27 | 0.4 | 4013 | 60 |
| williams et al. 2017/pdf | 0.7 | 0.1 | 9606 | 81 |
