@unpublished{repository6665,
           title = {Strategi Pembelajaran Matematika 3C 2020/2021 Esti},
       publisher = {Universitas Muhammadiyah Prof. DR. HAMKA},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/6665/},
          author = {Esti Ambar Nugraheni, EAN}
}