?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Kurnia+Ariyanti&rft.au=Solichah%2C+Kurnia+Ariyanti&rft.aulast=Solichah&rft.date=19+July+2013&rft.inst=Universitas+Negeri+Yogyakarta&rft.degree=S1&rft.title=IMPROVING+THE+WRITING+LEARNING+PROCESS+BY+USING+TIERED+TASKS+OF+THE+EIGHTH+GRADE+STUDENTS+AT+SMP+N+1+NGEMPLAK+IN+THE+ACADEMIC+YEAR+OF+2012%2F2013