@unpublished{repository28138,
           title = {sertifikat microsof word 2016},
       publisher = {Universitas Muhammadiyah Prof. DR. Hamka},
            note = {Unpublished},
          author = {Nofendri, Yos},
             url = {http://repository.uhamka.ac.id/id/eprint/28138/}
}