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2تقرير
المؤلفون: Lancon, Frederic, Benz, Helene David
المصدر: European Association of Agricultural Economists, 106th Seminar, October 25-27, 2007, Montpellier, France.
المؤلفون: Lancon, Frederic, Benz, Helene David
المصدر: European Association of Agricultural Economists, 106th Seminar, October 25-27, 2007, Montpellier, France.