ما هي وحده قياس الذهب ؟؟؟؟

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اسرار الذهب 18
ما هي وحده قياس الذهب ؟؟؟؟
وما هي الاونصة؟؟

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Dr/ Karam Mosaad Ahmed Mohammed Farag
professor assistants/Art Education college/Helwan university
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