From

Effect of Geographical Region and Harvesting Date on Antioxidant Activity, Phenolic and Flavonoid Content of Olive Leaves

Fuad Al-Rimawi, Imad Odeh, Abdallah Bisher, Jehad Abbadi, Mohammad Qabbajeh

Journal of Food and Nutrition Research. 2014, 2(12), 925-930 doi:10.12691/jfnr-2-12-11