Afifah, Rufnia A., and Chutamat Niwat. “) extract to fortify the green tea drink enchanced antioxidant activity”. Asia-Pacific Journal of Science and Technology 20, no. 3 (September 30, 2015): 305–313. accessed April 22, 2026. https://so01.tci-thaijo.org/index.php/APST/article/view/42634.