Characterization of an Expectorant Herbal Basak Tea Prepared with Adhatoda vasica Leaves. Bangladesh Journal of Scientific and Industrial Research, [S. l.], v. 44, n. 2, p. 211–214, 2009. DOI: 10.3329/bjsir.v44i2.3674. Disponível em: https://www.banglajol.info/index.php/BJSIR/article/view/3674. Acesso em: 4 jul. 2026.