Mannan, A., A. M, A.A., Sharmin, F., Fatema, T. and Faruk Sikder, M.O. 2011. In vitro thrombolytic assay of Alpinia zerumbet, Alpinia nigra and Urena sinuata. International Journal of Research in Phytochemistry and Pharmacology. 1, 3 (Jun. 2011), 187-191.