Panatpong Boonnoun และผู้แต่งคนอื่นๆ. (2012) Purification of free lutein from marigold flower by preparative chromatography and particle formation of free lutein by supercritical carbon dioxide. Chulalongkorn University:ม.ป.ท.Panatpong Boonnoun และผู้แต่งคนอื่นๆ. 2012. Purification of free lutein from marigold flower by preparative chromatography and particle formation of free lutein by supercritical carbon dioxide. ม.ป.ท.:Chulalongkorn University;Panatpong Boonnoun และผู้แต่งคนอื่นๆ. Purification of free lutein from marigold flower by preparative chromatography and particle formation of free lutein by supercritical carbon dioxide. ม.ป.ท.:Chulalongkorn University, 2012. Print.