Rijal, Dilli Prasad. “Taxonomic Study of Some Medicinally Important Species of <i>Swertia</I> L. (Gentianaceae) in Nepal”. Botanica Orientalis: Journal of Plant Science 6 (March 15, 2010): 18–24. Accessed May 5, 2024. https://www.nepjol.info/index.php/BOTOR/article/view/2906.