@unpublished{repository3324,
           title = {Absensi, BAP, Nilai, Mata Kuliah Geomorfologi},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/3324/},
          author = {Winarno, Winarno}
}