Nadiah, N., Cheng, L., Azhar, M., Karim, A., Uthumporn, U., & Ruri, A. (2015). Determination of Phenolics and Antioxidant Properties in Tea and the Effects of Polyphenols on Alpha-Amylase Activity. Pakistan Journal of Nutrition, 14(11), 808–817. https://doi.org/10.3923/pjn.2015.808.817