Barakoti, T. P., N. N. Tiwari, and M. Yonzon. “Quality of Chiretta (Swertia Chirayita) in Cultivated and Wild Samples Collected from Different Districts of Nepal”. Nepal Journal of Science and Technology, vol. 13, no. 2, Mar. 2013, pp. 57-62, doi:10.3126/njst.v13i2.7715.