@unpublished{repository19015,
           title = {Presensi, BAP, NIlai MK Pengantar Ekonomi 1F},
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/19015/},
          author = {Sonjaya, Ahmad}
}