Kanokwan Changwichit และผู้แต่งคนอื่นๆ. (2018) Quantitative analysis of a phenanthrene from Eulophia species by TLC-image analysis method. <i>Songklanakarin Journal of Science and Technology</i>, <i>40</i>(6), 1324-1328,Kanokwan Changwichit และผู้แต่งคนอื่นๆ. "Quantitative analysis of a phenanthrene from Eulophia species by TLC-image analysis method". Songklanakarin Journal of Science and Technology 40 (2018):1324-1328,Kanokwan Changwichit และผู้แต่งคนอื่นๆ. Quantitative analysis of a phenanthrene from Eulophia species by TLC-image analysis method. Research and Development Office, Prince of Songkla University:ม.ป.ท. 2018.