Mandal, Achintya Kumar, et al. “Powder Microscopic, Physicochemical and Chromatographic Approach for the Quality Control of Anti-Hypertensive Drug Rattha Piththathirku Kudinir Chooranam”. Plant Science Today, vol. 8, no. 3, July 2021, pp. 604–609, doi:10.14719/pst.2021.8.3.1137.