Ismael, H., M. Rajab, A. Ammar, and S. Sabbouh. “Propagation of Some Phenotypes of Prunus Ursina K.Y in the Western Region of Syria”. Tishreen University Journal -Biological Sciences Series, vol. 39, no. 3, Sept. 2018, https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/3899.