D. Nikolic, J. Spasic, Z. Zivkovic, P. Djordjevic, I. Mihajlovic, i J. Kangas, „SWOT - AHP model for prioritization of strategies of the resort Stara Planina“, Serb J Management, vol 10, izd. 2, str. 141–150, Sep. 2015, doi: 10.5937/sjm10-8928.