يعقوب غسان, العشعوش أيمن, and نعامه مجد. “Econometric Analysis of Tobacco Production in Syria During the Period 1990-2017”. Tishreen University Journal -Biological Sciences Series 42, no. 2 (June 12, 2020). Accessed November 25, 2024. https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/9643.