Ahsan, Aitazaz, et al. “Extraction, Phytochemical Screening and Wound Healing Activity of Herbal Formulation of Saussurea Lappa: Wound Healing and Anti-Bacterial Activity of Saussurea Lappa”. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, vol. 56, no. 3, Sept. 2019, pp. 83–96, http://ppaspk.org/index.php/PPAS-B/article/view/114.