Zhussupova, A. I., and N. Z. Omirbekova. “Comparative Study on Effect of Cadmium Chloride and Supermutagen Nitrosomethylurea on Soft Wheat”. International Journal of Biology and Chemistry, no. 4, Dec. 2012, pp. 28-32, https://ijbch.kaznu.kz/index.php/kaznu/article/view/62.