1. Department of Chemistry, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Adhamiyah, Iraq
2. College of Dentistry, The Islamic University, Najaf, Iraq
3. Department of computer engineering technology, Al Kitab University, Altun Kopru, Kirkuk, Iraq
4. Professor Health Administration Department, College of Business Administration, King Saud University, Riyadh, Saudi Arabia
5. Department of Pharmacy, Al- Mustaqbal University College, Hilla, Babylon, Iraq
6. Collage of Dentistry, National University of Science and Technology, Dhi Qar, Iraq