Areekul, V., and N. Phomkaivon*. “Thai Indigenous Plants: Focusing on Total Phenolic Content, Antioxidant Activity and Their Correlation on Medicinal Effects”. CURRENT APPLIED SCIENCE AND TECHNOLOGY, vol. 15, no. 1, Jan. 2018, pp. 10-23, https://li01.tci-thaijo.org/index.php/cast/article/view/123195.