N. Nanandhar, B. Rokeya, L. Ali, T. Shrestha, and S. Amalya, “Effect of ethanolic extract of Hippophea tibetana on hypoclycemic status of Type 2 diabetic rats: a prospective study”, J. Nepal Pharm. Assoc., vol. 16, no. 1, pp. 17–24, Oct. 2011.