Rao Vadaparthi, P., Kumar, K., Sarma, V. U. M., Hussain, Q. A., & Babu, K. S. (2015). Estimation of Costunolide and Dehydrocostus Lactone in Saussurea lappa and its Polyherbal Formulations followed by their Stability Studies Using HPLC-DAD. Pharmacogn Mag.

Rao Vadaparthi, P.R., K. Kumar, Vanka Uma Maheswara Sarma, Qazi Altaf Hussain, and K. Suresh Babu. "Estimation of Costunolide and Dehydrocostus Lactone in Saussurea Lappa and Its Polyherbal Formulations Followed By Their Stability Studies Using HPLC-DAD." Pharmacogn Mag 2015.

Rao Vadaparthi, P.R., et al. "Estimation of Costunolide and Dehydrocostus Lactone in Saussurea Lappa and Its Polyherbal Formulations Followed By Their Stability Studies Using HPLC-DAD." Pharmacogn Mag 2015.