Peamaroon, N., N. Moonrungsee, A. Boonmee, S. Suwancharoen, T. Kasemsuk, and J. Jakmunee. “Phytochemical and Xanthine Oxidase Inhibitory Activity of Carissa Carandas L. Fruit Extract”. RMUTP Research Journal, vol. 13, no. 2, Dec. 2019, pp. 106-18, doi:10.14456/jrmutp.2019.25.