El-gizawy, H. A.-E. ., and M. . Abdalla Hussein. “Isolation, Structure Elucidation of Ferulic and Coumaric Acids from Fortunella Japonica Swingle Leaves and Their Structure Antioxidant Activity Relationship”. Free Radicals and Antioxidants, vol. 7, no. 1, Sept. 2016, pp. 23-30, doi:10.5530/fra.2017.1.4.