@unpublished{repository2921,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
           title = {SK Mengajar Semester Genap Tahun Ajaran 2019-2020},
             url = {http://repository.uhamka.ac.id/id/eprint/2921/},
          author = {Utari, Retno}
}