قشعور بنان, سوسن عبدالله هيفا, أمجد حسن بدران, and نصر شيخ سليمان. 2022. “The Content of Clay Soil Planted With Capsicum Changed from Some Major Nutrients According to a Proposed Model for a Fertilizer Equation”. Tishreen University Journal -Biological Sciences Series 44 (5):167-79. https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/13500.