Sumber :

·         http://www.unescobkk.org/education/esd/esd-home/esd-in-bahasa-indonesia/esd-dan-media

·         www.unesco.org/education/desd

·         http://nn-no.facebook.com/topic.php?uid=85931754903&topic=10036

·         http://www.slideshare.net/galih_aw/1-3512548