@unpublished{repository29935,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof.DR.Hamka},
           title = {Surat Tugas, Sertifikat Narasumber},
          author = {Khavisa Pranata, Khavisa},
             url = {http://repository.uhamka.ac.id/id/eprint/29935/}
}