P.T.V.LAKSHMI, A. ANNAMALAI, and C. RAMYA. 2011. “A Study On The Genetic Diversity Analysis Of A Medicinally Potential Herb- Enicostemma Littorale Blume (Gentianaceae)”. International Journal of Pharma and Bio Sciences 2 (4):489-96. https://ijpbs.net/index.php/journal/article/view/1116.