@unpublished{repository32443,
           title = {Surat Tugas dan Sertifikat Penghargaan Juara 1},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/32443/},
          author = {Burhayani, Eni}
}