[1]
R. Wirawan, H. Hadi Sutrisno, D. Ambarwati, and A. Febriani, “Characteristic of Silica Level (SiO3) Resulted from the Extraction of Rice Husk Ash with KOH Solvent towards the Amount of Heating Time”, IJET, vol. 7, no. 3.36, pp. 143–146, May 2018, doi: 10.14419/ijet.v7i3.36.29095.