Sugirtha, P., et al. “Green Synthesis of Magnesium Oxide Nanoparticles Using Brassica Oleracea and Punica Granatum Peels and Their Anticancer and Photocatalytic Activity”. Asian Journal of Chemistry, vol. 27, no. 7, Mar. 2015, pp. 2513-7, doi:10.14233/ajchem.2015.17965.