Οι 17 στόχοι της αειφόρου ανάπτυξης
http://https://www.youtube.com/watch?v=yRrhciYIVu8http://https://inactionforabetterworld.com/17-pagkosmioi-stoxoi/
http://https://www.youtube.com/watch?v=yRrhciYIVu8http://https://inactionforabetterworld.com/17-pagkosmioi-stoxoi/