Jilu Joy, Sara Monsy Oommen, and P.Y Ansary. “AN IN-DEPTH PHARMACOGNOSTICAL VIEW OF SUNISHANNAKA (MARSILEA QUADRIFOLIA LINN) – A VALUABLE PTERIDOPHYTE ”. International Journal of Ayurveda and Pharma Research, Vol. 7, no. 7, Sept. 2019, pp. 23-27, https://ijapr.in/index.php/ijapr/article/view/1251.