D. S. Vučinić, I. R. Đurić, and A. M. . Andrić, “Characteristics and Problems of Professional Development of Teachers in the Balkan Countries”, Zb rad Filoz fak Priština, vol. 52, no. 2, pp. 235–251, Jul. 2022, doi: 10.5937/zrffp52-37053.