1. Department of Mathematics, COMSATS University Islamabad, Vehari Campus, Vehari 61100, Pakistan
2. Department of Mathematics & Statistics, Jordan University of Science and Technology, P. O. Box 3030, Irbid 22110, Jordan
3. Institute of Mathematics and Computer Science, University of Sindh, Jamshoro, Pakistan
4. KCAET Khairpur Mir’s, Sindh Agriculture University, Tandojam Sindh 70060, Pakistan
5. Department of Mathematics, COMSATS University Islamabad, Sahiwal 57000, Pakistan
6. Department of Mathematics and Statistics, Riphah International University I-14, Islamabad 44000, Pakistan
7. Department of Mechanical Engineering, Lebanese American University, Beirut, Lebanon
8. Industrial Engineering Department, College of Engineering, University of H’ail, KSA