@unpublished{repository35900,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
           title = {Surat Tugas dan Sertifikat Penunjang},
             url = {http://repository.uhamka.ac.id/id/eprint/35900/},
          author = {fetrimen, fetrimen}
}