M. A. Abbas Department of Physics, College of Education, University of Al-Qadisiyah, Al-Qadisiyah, Iraq Iraq
H. A. Hammood Education Department of Shatrah, General Directorate of Education in Thi-Qar, Thi-Qar, Iraq Iraq
D. J. Salman Education Department of Abu Al-Khaseeb, General Directorate of Education in Basrah, Basrah, Iraq Iraq