Document Type : Original Article
Authors
1 Dept. Economics, Fac. Agric., Ain Shams Univ
2 Agric. Economics Dept., Fac. of Agric., Ain Shams Univ., P.O. Box 68, Hadayek Shobra11241, Cairo, Egypt
3 Agric. Research Center, Agric. Economics Research Institute, Giza, Egypt
Abstract
Keywords