Pishbin, S. A. R. , , Iravani, H. , , Movahed Mohammadi, S. H. , , Shabanali Fami, H. , and Rezvanfar, A. . "An investigation of the Role of Environmental Factors on Entrepreneurial Orientation, Evidences from Iranian Animal Production Cooperatives", Iranian Journal of Agricultural Economics and Development Research, 43, 3, 2012, 497-509. doi: 10.22059/ijaedr.2012.30509