@unpublished{repository52045,
           title = {Surat Tugas Pengabdian Masyarakat},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
             url = {http://repository.uhamka.ac.id/id/eprint/52045/},
          author = {Mardhiati, Retno and Mardhiati, Retno and Mardhiati, Retno and Mardhiati, Retno}
}