Lee, Y. and Row, K. 2014. Purification of Three Flavones from Chamaecyparis obtusa by Multi-Phase Extraction using Anion-Exchange Imidazolium Silica. Asian Journal of Chemistry. 26, 19 (Sep. 2014), 6440–6442. DOI:https://doi.org/10.14233/ajchem.2014.16421.