1. 2 National Economics University , Hanoi , Vietnam
2. 3 Brno University of Technology , Czechia
3. 1 Bialystok University of Technology , Poland
4. 4 Mykolas Romeris University , Lithuania
5. 5 Kozminski University , Poland
6. 6 Kozminski University , Poland
7. 7 Warsaw University of Life Sciences , Poland
8. 8 Krakow University of Economics , Poland
9. 9 University of Economics in Katowice , Poland