Bayram, M., S. Topuz, and C. Kaya. “Antioxidant, Antimicrobial Activity of Olive Leaf Extract and Oleuropein, Their Possibilities Usage in Foods”. Turkish Journal of Agriculture - Food Science and Technology, vol. 8, no. 2, Feb. 2020, pp. 337-4, doi:10.24925/turjaf.v8i2.337-347.3039.