Islami, X., M. Topuzovska Latkovikj, L. Drakulevski, and M. Borota Popovska. “Does Differentiation Strategy Model Matter? Designation of Organizational Performance Using Differentiation Strategy Instruments – an Empirical Analysis”. Business: Theory and Practice, vol. 21, no. 1, Mar. 2020, pp. 158-77, doi:10.3846/btp.2020.11648.