1. Agricultural Economics, Shiraz University, Shiraz, Iran
2. Management, Faculty of Maritime Studies and Faculty of Sport and Phisical Eduations, University of Montenegro, Montenegro
3. Institute of Hydraulic Engineering, Vytautas Magnus University Agriculture Academy, Kaunas, Lithuania
4. Department of Economics and Rural Development, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium