@unpublished{repository51256,
            note = {Unpublished},
           title = {SK \& Sertifikat Pengmas},
       publisher = {Universitas Muhammadiyah Prof, Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/51256/},
          author = {Andhika, Pamungkas}
}