@unpublished{repository4251,
           title = {Absensi, BAP, Nilai Metodologi Penelitian 6B},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/4251/},
          author = {Priyanto, Priyanto}
}