?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Febriani%2C+Eka&rft.aulast=Febriani&rft.aufirst=Eka&rft.inst=Universitas+Negeri+Yogyakarta&rft.title=IMPROVING+STUDENTS%E2%80%99+SKILLS+IN+WRITING+PROCEDURE+TEXTS+BY+USING+PICTURE+SERIES+FOR+THE+SEVENTH+GRADE+STUDENTS+OF+SMP+N+3+MERTOYUDAN+IN+THE+ACADEMIC+YEAR+OF+2013%2F2014&rft.date=25+April+2014&rft.degree=S1