Ledwani, L., Sehgal, S., & Gupta, K. (2010). Anthraquinone Glycoside from Stem Bark of Cassia reingera and Use of Aqueous Bark Extracts as An Eco-friendly Natural Dye on Wool. Asian Journal of Chemistry, 21(7), 5179–5183. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/18290