Sarker, A. K., Ahamed, K., Chowdhury, J. U., & Begum, J. (2009). Characterization of an Expectorant Herbal Basak Tea Prepared with <i>Adhatoda vasica</i> Leaves. Bangladesh Journal of Scientific and Industrial Research, 44(2), 211–214. https://doi.org/10.3329/bjsir.v44i2.3674