@unpublished{repository43136,
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof DR Hamka},
           title = {Perangkat Pembelajaran Probelmatika Matematika 7A},
          author = {Wahidin, Wahidin},
             url = {http://repository.uhamka.ac.id/id/eprint/43136/}
}