?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Mei+Utami&rft.au=Mei+Utami%2C+Ester+Ria&rft.aufirst=Ester+Ria&rft.degree=S1&rft.date=28+July+2016&rft.inst=Universitas+Negeri+Yogyakarta&rft.title=DEVELOPING+SUPPLEMENTARY+READING-WRITING+MATERIALS+FOR+ENRICHMENT+PURPOSES+FOR+GRADE+X+STUDENTS+OF+SENIOR+HIGH+SCHOOL