@unpublished{repository3780,
           title = {Surat Kontrak Pengabdian pada Masyarakat},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/3780/},
          author = {Burhayani, Eni}
}