Deb, D. B., and K. C. Malick. “Revision of the Genus <I>Rubia< I> L. In India and Adjoining Regions”. Nelumbo 10, no. 1 (August 17, 2015): 1–16. Accessed May 17, 2024. https://www.nelumbo-bsi.org/index.php/nlmbo/article/view/76050.