9Dina L Umali, Lisa A. Schwartz (1994 ) .Publicand Private Agricultural Extension: Beyond TraditionalFrontiers [ J ] Dina Umali-Deininger. World Bank DiscussionPaper 236.World Bank Publications.
10M.Haitham, El- Hourani.The Role of Public andPrivate Sectors in Agriculture [ J ] . Representation Office ofthe Food and Agriculture Organization of the United Nationsin Jordan Organization of the United Nations in Jordan.2005(9).