Yingnakhon, W. and Srikulkit, K. (2013) “A Simple Quaternization Method of Hyperbranched Polyamidoamine Polymer and Antimicrobial Activity Evaluation of Cationic Hyperbranched Polyamidoamine Polymer”, Asian Journal of Chemistry, 25(7), pp. 4009–4012. doi: 10.14233/ajchem.2013.13879.