@unpublished{repository33222,
           title = {logika informatika 1c},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/33222/},
          author = {Atiqah Meutia Hilda, AMH}
}