@unpublished{repository55654,
           title = {Bukti ajar komunikasi massa 4A},
       publisher = {Universitas Muhammadiyah Prof, Dr. Hamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/55654/},
          author = {Andhika, Pamungkas}
}