@unpublished{repository50126,
           title = {Bukti ajar Manpro 5a},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof Dr. HAMKA},
          author = {Hamid Al Jufri, Jufri},
             url = {http://repository.uhamka.ac.id/id/eprint/50126/}
}