Characterization of an Expectorant Herbal Basak Tea Prepared with Adhatoda vasica Leaves. Bangladesh J. Sci. Ind. Res. [Internet]. 2009 Nov. 9 [cited 2026 Jul. 4];44(2):211-4. Available from: https://www.banglajol.info/index.php/BJSIR/article/view/3674