?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Eka&rft.aulast=Sumarn&rft.au=Sumarn%2C+Eka&rft.inst=Universitas+Negeri+Padang&rft.title=Pengaruh+Metode+Pembelajaran+Kooperative+Learning+Model+Numbered+Head+Together+dan+Motivasi+Belajar+terhadap+Hasil+Belajar+Ekonomi+Siswa+Kelas+X+SMA+Negeri+2+Batusangkar.&rft.degree=Masters%2FTesis&rft.date=2012