https://www.studocu.com/in/document/universidad-michoacana-de-san-nicolas-de-hidalgo/microbiologia-bacterias-y-virus/como-hablo-con-un-humano-en-jet-blue/119475533
https://www.studocu.com/in/document/universidad-michoacana-de-san-nicolas-de-hidalgo/microbiologia-bacterias-y-virus/como-hablo-con-un-humano-en-jet-blue/119475533