1. Civil Engineering Department, Faculty of Engineering, Fayoum University, Faiyum, Egypt
2. Chemistry Department, Faculty of Science, Fayoum University, Faiyum, Egypt
3. Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
4. Civil Engineering Department, Faculty of Engineering, Assuit University, Asyut, Egypt