@manual{repository2217,
            type = {Documentation},
       publisher = {MM UHAMKA},
           title = {surat tugas, und, nara sumber pengmas, sdn 04 2018 no 19},
             url = {http://repository.uhamka.ac.id/id/eprint/2217/},
          author = {Bambang, Dwi Hartono}
}