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| 526 | 526 | http://tradebooks.ckbib.ru | --- | (qiymatlanmagan) | 151 | |
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| 528 | 528 | https://lib.cspu.uz | --- | (qiymatlanmagan) | 152 | |
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| 530 | 530 | https://www.physoc.org/ | --- | (qiymatlanmagan) | 153 | |
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| 533 | 533 | https://www.hapsweb.org/ | --- | (qiymatlanmagan) | 153 | |
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| 535 | 535 | https://www.physoc.org/ | --- | (qiymatlanmagan) | 154 | |
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| 537 | 537 | https://www.khanacademy.org/science/biology | --- | (qiymatlanmagan) | 154 | |
| 538 | 538 | https://www.hapsweb.org/ | --- | (qiymatlanmagan) | 154 | |
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