Indrayan, A.K., and Vimla Yadav. “Isolation and Extraction of Medicinally Useful Dye from the Roots of Arnebia Nobilis Rech. F., Using Different Solvents”. Asian Journal of Chemistry 11, no. 2 (March 30, 2010): 610–612. Accessed October 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/23327.