Bhattarai, Ajaya, and Bijan Das. “Effects of Concentration, Temperature and Solvent Composition on the Partial Molar Volumes of Sodium Polystyrenesulphonate in Methanol -Water Solvent Media”. Journal of Nepal Chemical Society 23 (July 31, 2009): 82–88. Accessed April 19, 2024. https://www.nepjol.info/index.php/JNCS/article/view/2100.