E.-K. Soltani, K. Mokhnache, and N. Charef, “Polyphenol Contents and Antioxidant Activity of Ethanolic and Aqueous Algerian Propolis Extracts (Region of Serdj el ghoul)”, J. Drug Delivery Ther., vol. 10, no. 1, pp. 1–4, Jan. 2020, doi: 10.22270/jddt.v10i1.3797.