This author has not been identified. Look up 'Fehmi Najar' in GoogleThis author has not been identified. Look up 'Mehdi Ghommem' in GoogleThis author has not been identified. Look up 'Samed Kocer' in GoogleThis author has not been identified. Look up 'Alaa Elhady' in GoogleThis author has not been identified. Look up 'Eihab M. Abdel-Rahman' in Google