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https://cheshmandaz.org/2016/01/30/%d8%af%d9%88%d8%b1%d8%a7%d9%86%d8%aa-%d8%a7%db%8c%d8%b1%d8%a7%d9%86-%db%b8-%d8%b9%d9%84%d9%85-%d9%88-%d9%87%d9%86%d8%b1/
دورانت: ایران (۸) - علم و هنر