Lede, M., Wogo, H., Lulan, T. and Ledoh, S. 2021. Purification and Characterization of Silica Rice Husk Ash (Oryza Sative L.) From Kupang Regency. Chemistry Notes. 3, (1) (Jun. 2021), 31-39. DOI:https://doi.org/10.35508/cn.v3i(1).4745.