@unpublished{repository47548,
       publisher = {Universitas Muhammadiyah Prof. Dr. Hamka},
            note = {Unpublished},
           title = {Bukti Ajar PBL 6B},
          author = {Anna, Fitriani},
             url = {http://repository.uhamka.ac.id/id/eprint/47548/}
}