@unpublished{repository31302,
            year = {2023},
           title = {Piagam 20 tahun Pengabdian},
       publisher = {Universitas Muhammadiyah Prof. DR. Hamka},
           month = {November},
            note = {Unpublished},
          author = {Utari, Retno},
             url = {http://repository.uhamka.ac.id/id/eprint/31302/}
}