Karpagam, S., and S. Guhanathan. “Synthesis and Characterization of Endcapped Hyperbranched Polyesters”. Asian Journal of Chemistry 22, no. 7 (June 9, 2010): 5130–5138. Accessed July 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/11724.