Narkhede, B.N., S.D. Rathod, and A.S. Munde. “Volume and Area Swelling of the Polyester-Polyols”. Asian Journal of Chemistry 18, no. 1 (March 30, 2010): 455–460. Accessed November 5, 2024. https://asianpubs.org/index.php/ajchem/article/view/21351.