ABSTRACT THE EFFECT OF USING THE SOCIAL MEDIA CHANNEL YOUTUBE @XKWAVERS ON THE VIEWING SATISFACTION OF ALUMNI OF THE X-SCHOOL PROGRAM By: Fajrina Adella Supervisor: Dr. Rumyeni, S. Sos, M. Sc Social media is part of communication media. Social media invites anyone who is interested to participate by providing feedback, openly providing comments, and sharing information in a fast and unlim…