1. National University of Science and Technology, Dhi Qar, Nasiriyah, Iraq
2. Department of Mathematics, Faculty of Science and Technology, Irbid National University, Irbid 2600, Jordan
3. Faculty of Education and Arts, Sohar University, Sohar 3111, Oman
4. Institute of Strategic Industrial Decision Modelling (ISIDM), School of Quantitative Sciences (SQS), Universiti Utara Malaysia (UUM), Kedah, Sintok 06010, Malaysia
5. Department of Mathematics, Faculty of Science, Yarmouk University, Irbid 211-63, Jordan
6. Departments of Mathematics, Faculty of Science and Technology, Jadara University, Irbid 21110, Jordan