Konstantin Preslavski University of Shumen
University of Rousse”Angel Kantchev”
Trakia University of Stara Zagora,Bulgaria
Bourgas Prof.Assen Zlatarov University
University of National and World Economy
University of Economics —Varna
Medical University — Sofia
Medical University — Varna
Medical University — Pleven
National Sport Academy of Sofia
National Academy of Theatre and Film Arts “Kristyo Sarafov”
National Academy of Arts — Sofia
Technical University of Varna
University of Architecture,Civil Engineering and Geodesy
Technical University of Sofia