?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Sunardi&rft.aulast=Sunardi&rft.au=Sunardi%2C+Sunardi&rft.inst=Universitas+Negeri+Padang&rft.title=Implementasi+Metode+Problem+Posing+dalam+Model+Kooperatif+Tipe+Number+Heads+Together+terhadap+Hasil+Belajar+Matematika+Siswa+SMP+Negeri+1+Sitiung&rft.degree=Masters%2FTesis&rft.date=2011