Luthfiah, A. ., Y. Deawati, M. L. Firdaus, I. Rahayu, and D. R. . Eddy. “Silica from Natural Sources: A Review on the Extraction and Potential Application As a Supporting Photocatalytic Material for Antibacterial Activity”. Science and Technology Indonesia, vol. 6, no. 3, July 2021, pp. 144-55, doi:10.26554/sti.2021.6.3.144-155.