@unpublished{repository6108,
           title = {BAP, Absensi, dan Daftar Nilai},
            year = {2021},
           month = {February},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/6108/},
          author = {Safrul, Safrul}
}