Fauzy, R., 		Adi, W., 		Taryana, Y., & 		Yusmaniar, Y.
2018 Feb 23.  Effect of Silica Composition from Rice Husk Ash on The Performace of Absorbing Electromagnetic Wave on Composite of Unsaturated Polyester Resins/Silica. Jurnal ILMU DASAR. [Online] 19:1