“Improvement the Growth of Nigella Sativa L. Affected by Hydrogen Peroxide by Foliar Spraying With Glutamic Acid”. Ibn AL-Haitham Journal For Pure and Applied Sciences 29, no. 1 (March 9, 2017). Accessed May 5, 2024. https://jih.uobaghdad.edu.iq/index.php/j/article/view/71.