S. Pichaiyongvongdee, B. Rattanapun, and R. Haruenkit, “Total Polyphenol Content and Antioxidant Properties in Different Tissues of Seven Pomelo (Citrus grandis (L.) Osbeck) Cultivars”, Agr. Nat. Resour., vol. 48, no. 6, pp. 989–996, Dec. 2014.