1. Department of Mathematics, Faculty of Computer Science & Mathematics, University of Kufa, Najaf, Iraq
2. Department of Mathematics, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
3. Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Malaysia
4. Faculty of Education, Van Yüzüncü Yıl University, Van, Turkey
5. Department of Mathematics, Iran University of Science and Technology Narmak, Tehran, Iran,