Simon Sembiring และ Agus Riyanto; Rudy Situmeang; Zipora Sembiring; Nita Susanti; Iqbal Firdaus. (2020) Effect of amorphous rice husk silica addition on the structure of asphalt composite. <i>Journal of Metals, Materials and Minerals</i>, <i>30</i>(4), 113-118.Simon Sembiring และ Agus Riyanto; Rudy Situmeang; Zipora Sembiring; Nita Susanti; Iqbal Firdaus. "Effect of amorphous rice husk silica addition on the structure of asphalt composite". Journal of Metals, Materials and Minerals 30 (2020):113-118.Simon Sembiring และ Agus Riyanto; Rudy Situmeang; Zipora Sembiring; Nita Susanti; Iqbal Firdaus. Effect of amorphous rice husk silica addition on the structure of asphalt composite. Metallurgy and Materials Science Research Institute Chulalongkorn University:ม.ป.ท. 2020.