Malik , Lateef A., et al. “Phytochemical Content and the Potential of Punica Granatum Peel Extracts As Radical Scavengers and Dipeptidyl Peptidase-4 Inhibitors”. Journal of Biotechnology Research Center (JOBRC), vol. 13, no. 1, Jan. 2019, pp. 5-11, doi:10.24126/jobrc.2019.13.1.561.