| proquest dissertations and theses | 0.49 | 0.8 | 8627 | 33 | 93 |
| proquest dissertations & theses global | 1.16 | 0.1 | 2501 | 38 | 100 |
| proquest dissertations publishing | 0.53 | 0.8 | 9739 | 33 | 85 |
| proquest dissertations & theses | 0.64 | 0.1 | 8954 | 31 | 32 |
| proquest dissertations and theses global | 0.01 | 0.1 | 2965 | 40 | 1 |
| proquest dissertations and theses database | 1.06 | 1 | 6617 | 42 | 51 |
| proquest dissertations search | 0.56 | 0.5 | 907 | 29 | 85 |
| proquest dissertations express | 1.96 | 0.8 | 726 | 30 | 95 |
| proquest dissertations & theses database | 0.98 | 0.6 | 5515 | 40 | 64 |
| proquest dissertations publishing location | 1.38 | 0.5 | 7453 | 42 | 88 |
| proquest dissertations and theses open access | 1.64 | 0.1 | 1780 | 45 | 7 |
| proquest dissertations & theses a&i | 0.8 | 1 | 8427 | 35 | 69 |
| proquest digital dissertations | 1.02 | 0.3 | 9830 | 30 | 55 |
| dissertation express proquest | 0.92 | 0.8 | 8350 | 29 | 75 |
| doctoral dissertation database proquest | 1.68 | 0.4 | 6978 | 39 | 80 |
| proquest dissertations and theses pqdt | 1.16 | 0.6 | 1648 | 38 | 63 |
| proquest dissertations and theses program | 0.06 | 0.6 | 5111 | 41 | 82 |
| sbts proquest theses and dissertations | 1.21 | 0.7 | 1025 | 38 | 85 |
| proquest theses and dissertations lancaster | 0.57 | 0.7 | 8857 | 43 | 24 |
