1. Department of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
2. Department of Computer Science and Mathematics, Lebanese American University, Byblos, Lebanon
3. Department of Mathematics and Social Sciences, Sukkur IBA University, Sukkur, Pakistan
4. Department of Mathematical Sciences, Federal Urdu University of Arts, Science & Technology, Karachi, Pakistan
5. Mechanical Engineering Department, College of Engineering, King Saud University, Al-Riyadh, Saudi Arabia
6. Department of Mechanical Engineering, University of West Attica, Athens, Greece