@unpublished{repository41254,
       publisher = {Universitas Muhammadiyah Prof DR Hamka},
           title = {Perangkat Pembelajaran mata kuliah Berpikir Matematika Tingkat Tinggi},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/41254/},
          author = {Awalludin, Subhan Ajiz}
}