1. Willis, J. C. 1973.A Dictionary of the Flowering Plans and Ferns., Edited by: Shaw, A. K. A. 587London: Cambridge University Press.
2. Morton, J. F. 1981.Atlas of Medicinal Plants of Middle America, 761–763. Springfield, IL: Charles Thomas Pub.
3. ANTIBACTERIAL EVALUATION OF SOME INDIGENOUS VOLATILE OILS