2Dina L, Umali,Lisa h. Schwartz. Public and Private Agricultural Extension:Beyond Traditional Frontiers [J].Dina Umali-neininger. World Bank Discussion Paper 236. World Bank Publications, 1994.
3Lawrence D Smith. Decentralization and Rural Development The Role of the Public and Private Sectors in the Provision of Agricultural Support Services[J].Paper prepared for the FAO/IFAD/World Bank Technical Consultation on Decentralization, Rome, December 16-18,1997.
4Lawrence D Smith. Reform and Decentralization of Agricultural Services:h Policy Framework[J].FAO Agricultural Policy and Economic Development Series 7,2001.
5Haitham, Hourani El. The Role of Public and Private Sectors in hgriculture [J]. Representation Office of the Food and Agriculture Organization of the United Nations in Jordan Organization of the United Nations in Jordan. 9,2005.
