Nadeem Asghar, M.; Ullah Khan, I.; Sherin, L.; Ashfaq, M. Evaulation of Antioxidant Activity of Grewia Asiatica Berry Using 2,2’-Azinobis- (3-Ethylbenzothiazoline-6-Sulphonic Acid) and N,N-Dimethyl-P-Phenylenediamine Radical Cations Decolourization Assays. ajc 2010, 20, 5123-5132.