Prasanthi, P. S., M. Vishnuvardhana Rao, and B. K. “Retention of Xanthophylls in Green Foliar Vegetables After Different Food Preparations”. The Indian Journal of Nutrition and Dietetics, vol. 55, no. 3, July 2018, pp. 241-56, doi:10.21048/ijnd.2018.55.3.21081.