Li, J., S.J. Wang, H.Y. Liu, L. You, and S.K. Wang. “Preparation of Poly(urea-Formaldehyde) Microcapsules Containing Sulfur by in Situ Polymerization”. Asian Journal of Chemistry 24, no. 1 (September 30, 2011): 93–100. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/15977.