A, Makkiyah, Fawzi Kadhum, and Hatim Attiya. “Effect of Ethephon, Boron and Zinc Spray on Anatomical Characters of Sunflower Crop (Helianthus Annuus L.)”. Iraqi Journal of Science 54, no. 4. Appendix (January 26, 2024): 1078–1083. Accessed January 4, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12425.