?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=0643021059%2C+Yeni+Yulianti&rft.aulast=0643021059&rft.aufirst=Yeni+Yulianti&rft.date=20+Januari+2016&rft.atitle=PERBANDINGAN+KEMAMPUAN+PEMECAHAN+MASALAH+MATEMATIS+SISWA+ANTARA+PEMBELAJARAN+KOOPERATIF+TIPE+STAD+DAN+TIPE+NHT+&rft.title=Digilib+Library&rft.genre=article