programas de edicion de presentaciones By lidia.epshtein 1987 microsoft.power point https://support.microsoft.com/es-es/office/crear-una-presentaci%C3%B3n-en-powerpoint-422250f8-5721-4cea-92cc-202fa7b89617 2002 open imprest https://www.youtube.com/watch?v=sfpGDAlBG68 2012 google presentations https://www.youtube.com/watch?v=lotzX4lNjV8 https://go.ivoox.com/rf/29217334
