Do Follow .EDU profile backlink from Antioquiatic
Register an account here: http://mp.antioquiatic.edu.co/Registrar.html
Select General and fill out some random data like this:
Click registrar and IGNORE ERROR SMTP MESSAGE.
Click on Perfil and post something with your link, you must select PUBLICO from the drop-down:
On the end you get a post with your backlink, example: