نتائج البحث
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العلوم الطبيعية والرياضيات والإحصاء
فيديو
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الأرشفة الإلكترونية
فيديو
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الأرشفة الإلكترونية
فيديو
![](https://oerx.nelc.gov.sa/sites/default/files/styles/large/public/organization-logo/Web%201920%20%E2%80%93%2031.png?itok=uSi-YFSj)
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المصفيـات: