Udaibah, W., & Priyanto, A. (2017). Synthesis and Structure Characterization of SiO2 from Petung Bamboo Leaf Ash (Dendrocalamus asper (Schult.f.) Backer ex Heyne). Journal of Natural Sciences and Mathematics Research, 3(1), 215-220. doi:https://doi.org/10.21580/jnsmr.2017.3.1.1697