@unpublished{repository34135,
            note = {Unpublished},
            year = {2021},
           month = {December},
       publisher = {UHAMKA},
           title = {Modul Geogebra},
             url = {http://repository.uhamka.ac.id/id/eprint/34135/},
          author = {Tri Isti Hartini, TIH}
}