Hisham majeed shlash. “Acomparative Anatomical Study of the Species Aster Subulatus and Aster Tripolium (Asteraceae) InTikrit- Iraq”. Tikrit Journal of Pure Science 21, no. 4 (February 7, 2023): 30–35. Accessed September 16, 2026. https://www.tjpsj.org/index.php/tjps/article/view/1049.