@unpublished{repository10412,
           title = {BAP,DKM,DNM Solar Cell},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/10412/},
          author = {Rifky, Rifky}
}