Wipawee Yothipitak. 2007. Optimization of supercritical carbon dioxide extraction of essential oil from Amomum krevanh Pierre. Field of Study Chemical Engineering, Chulalongkorn University;
Wipawee Yothipitak. (2007) Optimization of supercritical carbon dioxide extraction of essential oil from Amomum krevanh Pierre . Chulalongkorn University/Bangkok.
Wipawee Yothipitak. Optimization of supercritical carbon dioxide extraction of essential oil from Amomum krevanh Pierre. . Bangkok:Chulalongkorn University, 2007.
Wipawee Yothipitak. (2007) Optimization of supercritical carbon dioxide extraction of essential oil from Amomum krevanh Pierre . Chulalongkorn University/Bangkok.