@unpublished{repository9619,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka.},
           title = {Presensi, BAP, NIlai MK Akuntansi Biaya},
            note = {Unpublished},
          author = {Sonjaya, Ahmad},
             url = {http://repository.uhamka.ac.id/id/eprint/9619/}
}