قادرو ا. , جهاد ابراهيم, ربيع زينة and أولا قاجو 2024. Studying the effect of pressure in the elastic field and the plastic field of soil on some of its physical properties and on the productivity of the soybean crop . Tishreen University Journal -Biological Sciences Series. 46, 1 (Apr. 2024), 69–87.