Athia Nahi AL-Mashhadani, Israa Kreem Nasrullah, Aseel Fouad AL-Hussaini, and Hind Ebraheem Ahmed. 2014. “Palynological Study for Nine Cultivated Species of Asteraceae Family ”. Journal of Madenat Alelem University College 6 (1), 19-29. http://116.203.176.164/index.php/JMAUC/article/view/191.