Salman Khan: Wykłady wideo rewolucją w edukacji
20:26
Added: 4 months ago
From: JACEKKUPRAS
Views: 936
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  • Warto dodać w w w khanacademy org

    sinc123 4 months ago

  • @sinc123 Dzięki za sugestię. Dodałem.

    JACEKKUPRAS 4 months ago

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