G A Geetha, K S Shivashankara, T K Roy,. “Antioxidant Capacity, Radical Scavenging Ability, Total Phenols and Flavonoids in Three Types of Betelvine (Piper Betle L.)”. Journal of Spices and Aromatic Crops 21, no. 1 (June 25, 2012): 64–67. Accessed November 17, 2025. https://updatepublishing.com/journal/index.php/josac/article/view/5000.