@unpublished{repository27974,
           title = {SK, LAMPIRAN, KEHADIRAN, BAP, NILAI KONSEP BIO 6 A PGSD},
       publisher = {Universitas Muhammadiyah Prof.Dr.Hamka},
            note = {Unpublished},
          author = {Gufron Amirullah, Gufron},
             url = {http://repository.uhamka.ac.id/id/eprint/27974/}
}