@manual{repository2203,
            type = {Documentation},
           title = {surat tugas, undangan, materi musda Gapeksindo DKI feb 2019},
       publisher = {MM UHAMKA},
          author = {Bambang, Dwi Hartono},
             url = {http://repository.uhamka.ac.id/id/eprint/2203/}
}