?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Prasetia+Trias+Sari&rft.au=Sinta%2C+Prasetia+Trias+Sari&rft.aulast=Sinta&rft.date=22+July+2015&rft.degree=S1&rft.title=THE+USE+OF+VIDEOS+TO+IMPROVE+THE+STUDENTS%E2%80%99+SPEAKING+SKILLS+AT+CLASS+VII+B+OF+SMPN+2+PATUK+IN+THE+ACADEMIC+YEAR+OF+2014%2F2015&rft.inst=Universitas+Negeri+Yogyakarta