Aroonrerk, Nuntana, and Narisa Kamkaen. 2018. “Anti-Inflammatory Activity of Quercus Infectoria, Glycyrrhiza Uralensis, Kaempferia Galanga and Coptis Chinensis, the Main Components of Thai Herbal Remedies for Aphthous Ulcer”. Journal of Health Research 23 (1):17-22. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/156318.