@unpublished{repository5507,
           title = {Pengaruh geogebra online berbasis scaffolding dan tingkat self-regulated learning terhadap kemampuan berpikir kritis},
            note = {Unpublished},
       publisher = {Universitas Muhammadiyah Prof Dr HAMKA},
             url = {http://repository.uhamka.ac.id/id/eprint/5507/},
          author = {Hikmatul Khusna, HK}
}