Djidel, Saliha, et al. “Gastroprotective and Antioxidant Properties of Ethanolic Extract from Pear Fruit (Pyrus Communis L.)”. Journal of Drug Delivery and Therapeutics, vol. 10, no. 5, Oct. 2020, pp. 306-10, https://doi.org/10.22270/jddt.v10i5.4538.