S. SWAPNA REKHA, and M. BHASKAR. “IN VITRO SCREENING AND IDENTIFICATION OF ANTIOXIDANT ACTIVITIES OF ORANGE (CITRUS SINENSIS) PEEL EXTRACT IN DIFFERENT SOLVENTS”. International Journal of Pharma and Bio Sciences, vol. 4, no. 4, Dec. 2013, pp. 405-12, https://ijpbs.net/index.php/journal/article/view/2772.