#Proof of Authentication
Campaign: Media
Publication / Video Link:
1. https://steemit.com/rubius/@meloman4u/rubius-so-simple-and-profitable
2. https://golos.io/rubius/@sergei.zeland/rubius-so-simple-and-profitable
3. https://medium.com/@sergei.zeland/rubius-so-simple-and-profitable-4b92bebae0cf
Your @telegram username: @serg_zeland