@unpublished{repository3858,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof DR HAMKA},
           title = {BAP, Presensi dan nilai Dinamika kelompok 4G},
             url = {http://repository.uhamka.ac.id/id/eprint/3858/},
          author = {Tri Mawartinah, Trimawartinah}
}