?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=SITI+SURASNI+WIDIARTI%2C+NIM.+08600045&rft.aulast=SITI+SURASNI+WIDIARTI&rft.aufirst=NIM.+08600045&rft.degree=Skripsi&rft.date=24+October+2014&rft.title=EFEKTIVITAS+PENDEKATAN+PBL+(Problem+Based+Learning)+DIKOLABORASIKAN+DENGAN+METODE+NHT+(Numbered+Heads+Together)+TERHADAP+PEMAHAMAN+KONSEP+DAN+KEMAMPUAN+PEMECAHAN+MASALAH+MATEMATIKA+PESERTA+DIDIK+KELAS+VII+SMP+NEGERI+2+BAMBANGLIPURO+&rft.inst=UIN+SUNAN+KALIJAGA