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| Strona | Kraj | Pozycja lokalna | Pozycja globalna |
|---|---|---|---|
| sciencedaily.com |
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1427 | 3136 |
| freevideolectures.com |
|
16116 | 57977 |
| sciencespot.net |
|
50531 | 294348 |
| sciencenetlinks.com |
|
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| scienceinschool.org |
|
217315 | 487576 |
| planet-science.com |
|
B/D | B/D |
| globe.gov |
|
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| shodor.org |
|
52418 | 160102 |
| msnucleus.org |
|
196683 | 531929 |
| sciplus.com |
|
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