Pirjade Mujawar Farhat Aslam, Jadhav Santosh, Sawale Jyotiram, and Patil Manojkumar. “Pharmacognostical, Phytochemical and Pharmacological of Echinops Echinatus Roxb: A Comprehensive Review”. World Journal of Pharmaceutical Sciences, vol. 3, no. 8, Aug. 2015, pp. 1626-32, https://wjpsonline.com/index.php/wjps/article/view/pharmacognostical-phytochemical-echinops-echinatus-roxb.