Karastathis, Dimitris, Georgia Yfantidou, Stella Kormikiari, Dimitris Gargalianos, and Antonia Kalafatzi. “Sampling in Management Studies of Public Organizations: Elite Orientation Model Vs. Multiple Informants Model”. Emerging Science Journal 5, no. 2 (April 1, 2021): 221–232. Accessed June 6, 2025. https://www.ijournalse.org/index.php/ESJ/article/view/469.