Alazemi, M. F. F. S., M. N. Abdullah, F. Mustapha, M. K. A. Ariffin, and E. E. Supeni. “Effect of Rice Husk Ash Addition on the Physical Properties of Soda-Lime-Silica Glass for Building Glass and Window Panel”. Journal of Mechanical Engineering and Sciences, vol. 15, no. 1, Mar. 2021, pp. 7771-80, doi:10.15282/jmes.15.1.2021.13.0613.