@phdthesis{UNY1916,
            year = {2011},
          school = {UNY},
          author = {- Ivana Ekasari Neily Nur Rohmani},
           title = {UPAYA MENINGKATKAN PRESTASI BELAJAR SISWA MELALUI PENDEKATAN OPEN-ENDED DALAM PEMBELAJARAN MATEMATIKA SISWA KELAS VIII MADRASAH TSANAWIYAH MU?ALLIMAT MUHAMMADIYAH YOGYAKARTA},
           month = {November},
             url = {http://eprints.uny.ac.id/1916/}
}