Kurniawan, Winarto, and Hirofumi Hinode , translators. “Lean Condition Procedure for Utilization of Silica from Rice Husk As Zeolite Precursor”. Indonesian Journal of Computing, Engineering, and Design (IJoCED), vol. 2, no. 2, Oct. 2020, pp. 111-2, https://doi.org/10.35806/ijoced.v2i2.119.