& Al-Taye A. AN ECONOMICAL STUDY TO MEASUREMENT OF MARKETING EFFICIENCY IN CALF FATTENING FIELDS IN NINEVEH GOVERNORATE(2018). Iraqi J. Agric. Sci. [Internet]. 2020 Aug. 26 [cited 2024 Nov. 22];51(4). Available from: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/1092