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 April 28, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/1049.