& Jbara R. MEASURING THE TECHNICAL EFFICIENCY AND THE RATE OF CHANGE IN THE TFP FOR FARMS RAIN-FED WHEAT IN THE REGION IN LIGHT OF DIFFERING SIZE AREA. Iraqi J. Agric. Sci. [Internet]. 2016 Dec. 25 [cited 2024 May 3];47(6). Available from: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/477