Parra, K.; Piñero, M.; Narvaez, C.; Uzcátegui, S.; Arenas de Moreno, L.; Huerta Leidenz, N. Evaluation of Microbiological and Physical-Chemistry of Frozen Hamburger Patties Expended in Maracaibo, Zulia State, Venezuela. Rev. Cient. FCV-LUZ 1, 12.