Hemalatha, N., J. Naveen, and V. Baskaran. “Medicinal Plants As Sources of Retina Protective Carotenoids (Lutein, β-Carotene) and Their Radical Scavenging Property”. The Indian Journal of Nutrition and Dietetics, vol. 56, no. 4, Oct. 2019, pp. 365-80, doi:10.21048/ijnd.2019.56.4.23709.