“The Adsorption of Some Trace Heavy Metals from Aqueous Solution Using Non Living Biomass of Sub Merged Aquatic Plant Ceratophyllum Demersum”. Iraqi Journal of Science, vol. 56, no. 4A, Feb. 2023, pp. 2822-8, https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9505.