@unpublished{repository50186,
       publisher = {Universitas Muhammadiyah Prof DR HAMKA},
            note = {Unpublished},
           title = {SK-BAP-ABSENSI-NILAI-SISTEM-OPERASI},
             url = {http://repository.uhamka.ac.id/id/eprint/50186/},
          author = {Alim, Endy}
}