Chairgulprasert, V., and K. Kongsuwankeeree. “reliminary hytochemical creening and ntioxidant ctivity of obusta offee lossom”. cience & echnology sia, ol. 22, no. 1, Mar. 2017, pp. 1-8, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/80812.