Zayadi, R. A., Abdul Rahim, N. and Abu Bakar, F. (2016) “Determination of Flavonoid and Caffeine Content in Black and Oolong Teas”, Journal of Science and Technology, 8(2). Available at: https://publisher.uthm.edu.my/ojs/index.php/JST/article/view/1747 (Accessed: 23June2021).