1. Antioxidant determination by the use of stable free radical;Blois;Nature,1958
2. Studies on curry leaf (Murraya koenigii L.);Chakrabarty;Phytochemistry,1997
3. Natural antioxidant from rosemary and sage;Chang;Journal of Food Science and Technology,1977
4. Cui, C. B., Cai, B., Yan, S. Y., & Yao, X. S. (2002). Patent CN 1332157 2002. Chem Abstr., 137, 1309964.