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Prof. Dr. Haitham M. Ayyad
Geology, Faculty of Engineering, Al-Azhar University, Cairo, Al Qāhirah, Egypt
Professor in Al-Azhar University. Skilled in biostratigraphi...
Prof. Dr. Haitham M. Ayyad
Geology, Faculty of Engineering, Al-Azhar University, Cairo, Al Qāhirah, Egypt
Professor in Al-Azhar University. Skilled in biostratigraphi...
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