@unpublished{repository4157,
           title = {sampul prosiding, informasi dewan redaksi/editor/steering committe dan panitia pelaksana, daftar isi, artikel dan sertifikat},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/4157/},
          author = {Arumsari, Imas}
}