Udaibah, Wirda, and Agus Priyanto. 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):215-20. https://journal.walisongo.ac.id/index.php/JNSMR/article/view/1697.