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  • geol.sci.sohag-univ.edu.eg/2020/01/16/%D9%85%D9%82%D8%AA%D8%B1%D8%AD-%D8%A7%D8%AA%D9%81%D8%A7%D9%82%D9%8A%D8%A9-%D8%AA%D8%B9%D8%A7%D9%88%D9%86-%D8%A8%D9%8A%D9%86-%D9%83%D9%84%D9%8A%D8%A9-%D8%A7%D9%84%D8%B9%D9%84%D9%88%D9%85-%D9%88%D9%83/ (port 80)