“Determination the Concentration Elements of Cultivation Media (Peat Moss, Perlite and Hormone) Using X-Ray Fluorescence Technique”. Iraqi Journal of Science 59, no. 4A (October 31, 2018): 1769–1777. Accessed May 4, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/398.