Thanh Tung, B., Ky Duyen, D., & Nhat, B. (2020). Evaluating the Antioxidant and Xanthine Oxidase Enzyme Inhibitory Activities in vitro of Piper betle Linn. Leaf Extract. VNU Journal Of Science: Medical And Pharmaceutical Sciences, 36(2). doi:10.25073/2588-1132/vnumps.4231