@unpublished{repository3615,
       publisher = {Rosalina},
            note = {Unpublished},
           title = {surat kontrak lengkap pengmas hidroponik},
             url = {http://repository.uhamka.ac.id/id/eprint/3615/},
          author = {Rosalina{,} S.T.{,} M.T., Rosalina}
}