Document Type : Research Paper
Authors
1 Ph.D Student Agricultural Economics /Ferdowsi University of Mashhad, Mashhad, Iran
2 Professor of Agricultural Economics, Ferdowsi University of Mashhad Mashhad, Iran
3 Professor of Agricultural Economics, Ferdowsi University of Mashhad, Mashhad, Iran
4 Professor of Agricultural Economics, Ferdowsi University of Mashhad
Abstract
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