15.07.2012 10:30
https://es.scribd.com/doc/28605184/Granjas
https://sian.inia.gob.ve/repositorio/revistas_tec/FonaiapDivulga/fd53/granjas.htm
https://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve=90411667008
https://www.biomanantial.com/granja-peira-pioneros-agricul