Mustafa Al Doliemy, Hekmat, and Sajeda Aziz Aboud. “Effect of Gamma Radiation on the Growth of Nigella Sativa L. Callus”. Journal of Education and Science 22, no. 2 (June 1, 2009): 91–99. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41630.