1. Faculty of economics, Tashkent State University of Economics, Uzbekistan
2. Faculty of Finance and accounting, Tashkent State University of Economics, Uzbekistan
3. Department of Accounting, Tashkent State University of Economics, Uzbekistan
4. Department of Mathematical Methods in Economics, University of Geological Science, Uzbekistan
5. Business Management and Logistics Department, Tashkent State University of Economics, Uzbekistan
6. Department of Economics, Mamun University, Uzbekistan