Rojas, J.; Suárez, F.; Bueno, D.; Buitrago, A.; Rojas, L.; Velazco, E. Comparative Study on the Chemical Composition and Antibacterial Activity of the Essential Oil of Chromolaena Laevigata (Lam.) R.M. King & H. Rob. Collected from Mérida-Venezuela. Ciencia 1, 20.