1. Department of Mathematics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq
2. Doctoral School of Mathematical and Computational Sciences, University of Debrecen, H-4002 Debrecen, Pf 400, Hungary
3. Department of Mechanical and Materials Engineering, Wright State University, 3640 Colonel Glenn Hwy, Dayton, OH 45435, USA
4. Department of Business Administration, Shatt Al-Arab University College, Basrah, Iraq
5. Applied Sciences Department, University of Technology, Baghdad, Iraq
6. Department of Mathematics, Faculty of Science, Hadhramout University, Hadhramout 50512, Yemen
7. Department of Mathematics, Faculty of Education, Seiyun University, Hadhramout 50512, Yemen
8. Department of Mathematic, College of Science, Taif University, P.O Box 11099, Taif 21944, Saudi Arabia