1. Department of Statistics and Econometrics, Tashkent Financial Institute, Uzbekistan
2. Department of Digital Economy, Tashkent State University of Economics, Uzbekistan
3. Faculty of Finance and accounting, Tashkent State University of Economics, Uzbekistan
4. Research Department, Fiscal Institute under the Tax Committee of the Republic of Uzbekistan, Uzbekistan
5. World economy department, Tashkent State University of Economics, Uzbekistan