?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=SUMARYANTO+-+NIM.+07220042%2C+&rft.aulast=SUMARYANTO+-+NIM.+07220042&rft.aufirst=+&rft.degree=Skripsi&rft.date=24+June+2011&rft.title=UPAYA+PUSAT+STUDI+LAYANAN+DIFABEL+DALAM+MEMBANTU+KEBERHASILAN+BELAJAR+MAHASISWA+TUNANETRA&rft.inst=UIN+Sunan+Kalijaga+Yogyakarta