• Region of Central Macedonia (Greece) - LB
  • University of Macedonia - Department of Organization and Business Administration - PB2
  • Democritus University of Thrace - Department of Economics - Special Research Reserve Account - PB3
  • Municipality of Yakoruda – PB4
  • Faculty of Arts, South-West University “Neofit Rilski”, Blagoevgrad (Bulgaria) – PB5
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