@unpublished{repository2141,
           title = {Daftar Hadir Perkuliahan Ekman MM SPS 2019-2},
            year = {2020},
            note = {Unpublished},
           month = {July},
       publisher = {UHAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/2141/},
          author = {Diponegoro, Ahmad}
}