@unpublished{repository13557,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof.Dr. Hamka},
           title = {Data Penunjang Ervin Azhar},
          author = {Ervin, Azhar},
        abstract = {Berisi Data Penunjang Kegiatan Ervin Azhar meliputi Surat Tugas dan Sertifikat},
             url = {http://repository.uhamka.ac.id/id/eprint/13557/}
}