Maria A. Islas-Osuna, Norma A. Stephens-Camacho, Carmen A. Contreras-Vergara, Marisela Rivera-Dominguez, Ernesto Sanchez-Sanchez, Monica A. Villegas-Ochoa and Gustavo A. Gonzalez-Aguilar
American Journal of Agricultural and Biological Sciences 5 ( 3 ): 342 - 349 , 2010