1. New Uzbekistan University Tashkent Uzbekistan
2. V.I. Romanovskiy Institute of Mathematics Uzbekistan Academy of Sciences Tashkent Uzbekistan
3. Faculty of Mathematics National University of Uzbekistan Tashkent Uzbekistan
4. Department of Mathematical Sciences, College of Science United Arab Emirates University Al Ain United Arab Emirates
5. King's College London London UK
6. Department of Management Information Systems, College of Business and Economics Qassim University Buraydah Saudi Arabia