Kaewkittikhun, M. ., N. Phunikom, P. Kheolamai, S. Manochantr, C. Tantrawatpan, and D. Tantikanlayaporn. “Andrographolide Increases Cell Viability and Proliferation of Human Umbilical Cord-Derived Mesenchymal Stem Cells”. Science & Technology Asia, vol. 26, no. 3, Sept. 2021, pp. 188-95, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/219589.