1. Utrecht University, Utrecht, Netherlands
2. Cardinal Stefan Wyszynski University, Warsaw, Poland
3. Northwest Normal University, Lanzhou, China
4. Tilburg University, Tilburg, Netherlands
5. Tainan University of Technology, Tainan, Taiwan
6. University of Porto, Porto, Portugal
7. Aksaray University, Aksaray, Turkey
8. Babes-Bolyai University, Cluj-Napoca, Romania
9. Hiroshima University, Hiroshima, Japan
10. University of Lausanne, Lausanne, Switzerland