1. Lviv State University of Internal Affairs, Lviv, Ukraine.
2. Department of Accounting, Control, Analysis and Taxation, Lviv University of Trade and Economics, Lviv, Ukraine.
3. Head of the Legal Department of "Troyanda Zahid" LLC, Ukraine.
4. Kyiv National University of Construction and Architecture, Ukraine.
5. Rivne Technical Vocational College of National University of Water and Environmental Engineering, Rivne, Ukraine.