@unpublished{repository2540,
           title = {Regresi Logistik Pada Model Problem Based Learning Berbantu Software Cabri 3D},
         journal = {Jurnal Mercumatika},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/2540/},
          author = {Leni Marlena, Leni}
}