Verma, J.K., and Anju G. Verma. 2016. “Synthesis, Sorption Properties of a New Chelating Ion-Exchange Resin Containing Β-Resorcylic Acid As the Functional Group and Its Biotechnological Application”. Asian Journal of Chemistry 16 (3):1653-59. https://asianpubs.org/index.php/ajchem/article/view/14458.