“Quantitative Determination of Sinensetin in Orthosiphon stamineus Leaves by Thin-Layer Chromatography and Imaging Densitometry: Short Communication”, Pakistan Journal of Scientific & Industrial Research, vol. 48, no. 2, pp. 108–109, Apr. 2005, Accessed: Mar. 10, 2026. [Online]. Available: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/1351