Vaibhav M. Shinde, Kamlesh Dhalwal, Manohar Potdar, and Kakasaheb R. Mahadik. “Application of Quality Control Principles to Herbal Drugs”. International Journal of Phytomedicine, vol. 1, no. 1, Dec. 2009, pp. 4-8, https://ijp.arjournals.org/index.php/ijp/article/view/2.