Afifah, R.A. and Niwat, C. 2015. The use of mangosteen pericarp (Garcinia mangostana L.) extract to fortify the green tea drink enchanced antioxidant activity. Asia-Pacific Journal of Science and Technology. 20, 3 (Sep. 2015), 305–313. DOI:https://doi.org/10.14456/kkurj.2015.25.