1. Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
2. Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt
3. Chemistry Department, Faculty of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
4. Chemistry Department, Turabah University College, Taif University, Turabah, Saudi Arabia
5. Chemistry Department, University College of Alwajh Tabuk University, Alwajh, Saudi Arabia
6. Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
7. Basic Sci., Department, Prepar.Year, Hail University, Hail, Saudi Arabia
8. Chemistry Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia