Abdullah, I., W. Samadi, A. Widyana, D. Pandapotan, and R. Bakri. “Synthesis of Porous Silica by Co-Micelle Emulsion Templating Technique Using PEG/acrylamide and 2–(acryloyloxy)–N,N,N–trimethylethanaminium chloride/Acrylamide As Templates”. Journal of Metals, Materials and Minerals, vol. 24, no. 2, Dec. 2014, http://jmmm.material.chula.ac.th/index.php/jmmm/article/view/114.