@unpublished{repository2430,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. HAMKA},
           title = {Presensi, BAP, Nilai Statistika Ekonomi dan Bisnis 2R},
             url = {http://repository.uhamka.ac.id/id/eprint/2430/},
          author = {Leni Marlena, Leni}
}