Petrović, Vladan, Faculty of Mechanical Engineering, University of Niš (Serbia)
Prodović, Hadži Bojan, Megatrend University, John Nesbit, Belgrade (Serbia)
Prodović Milojković, Biljana, Faculty of Applied Ecology – Futura, Metropolitan University, Belgrade (Serbia)
Prodović Milojković, Biljana, Metropolitan University, Faculty of Applied Ecology - Futura, Belgrade (Serbia)
Prodović Milojković, Biljana, Faculty of Applied Ecology - Futura, Metropolitan University, Belgrade (Serbia)
Prvulović, Nikola, Faculty of Sport and Physical Education, University of Niš (Serbia)
Pucarević, Bojana, Faculty of Philosophy, University of Niš (Serbia)
Qafzezi, Eriola, Fan S. Noli University, Korca, Albania (Albania)
Raković, Aleksandar, Faculty of Sport and Physical Education, University of Niš (Serbia)
Randjelović, Branislav, University of Priština-K. Mitrovica, Faculty of Teachers Education in Prizren-Leposavić (Serbia)
Ranđelović, Branislav, Faculty of Teachers Education in Prizren-Leposavić, University of Priština-K.Mitrovica, (Serbia)
Ranđelović, Dušan, University of Priština with temporary headquarters in Kosovska Mitrovica (Serbia)
Ranđelović, Nebojša (Serbia)
Ranđelović, Nebojša, Faculty of Sport and Physical Education, University of Niš (Serbia)
Ristić, Milica, Pedagogical Faculty in Vranje, University of Niš (Serbia)
Ristić, Milica, University of Niš, Pedagogical Faculty in Vranje (Serbia)
Ristić Gorgiev, Slađana, University of Niš, Faculty of Philosophy, Department of Philosophy
Rusimović, Tanja, Secondary School Gimnazija “Bora Stankovic“, Vranje (Serbia)
Šaranac Stamenkovic, Jasmina, Faculty of Philosophy, University of Niš (Serbia)
Savić, Zvezdan, Faculty of Sport and Physical Education, University of Niš (Serbia)
Savić, Đorđe, Faculty of Sport and Physical Education, University of Belgrade (Serbia)
Simjanović, Dušan, Metropolitan University, Faculty of Information Technology, Belgrade (Serbia)
Sinanović, Šćepan, High Medical College of Professional Studies „Milutin Milanković“, Belgrade (Serbia)
Skrobić, Ljiljana (Serbia)
Spasić, Aleksandar, Academy of Technical and Educational Vocational Studies Niš – Pirot Department (Serbia)

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