Lee, Y.R., M. Tian, and K.H. Row. “Optimized Synthesis Conditions of Ionic Liquid-Silica Using Response Surface Methodology”. Asian Journal of Chemistry 26, no. 18 (September 2, 2014): 6189–6193. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_19_59.