M. M. Azad, A. A. Mahmud, M. S. Islam, and A. I. Gouhar, “Common sage (Salvia officinalis) antiviral role: potentiality of a Unani hand sanitizer in COVID-19 (corona virus) second wave control”, Asian J. Med. Biol. Res., vol. 6, no. 4, pp. 611–617, Jan. 2021.