Srikanth, M. V., S. A. Sunil, N. S. Rao, M. U. Uhumwangho, and K. V. Ramana Murthy. “Ion-Exchange Resins As Controlled Drug Delivery Carriers”. Journal of Scientific Research, vol. 2, no. 3, Aug. 2010, p. 597, doi:10.3329/jsr.v2i3.4991.