فاضل ب. ., ابراهيم صقر, and نزار معلا. “Economic Analytical Study of Anise Production in Al-Ghab Region”. Tishreen University Journal -Biological Sciences Series, vol. 45, no. 5, Dec. 2023, pp. 285-97, https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/15991.