?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Kurniawan&rft.au=Kurniawan%2C+Yusuf&rft.aufirst=Yusuf&rft.degree=S2&rft.date=30+November+2017&rft.inst=UNY&rft.title=Peran+Teman+Sebaya+dalam+Pembentukan+Karakter+Siswa+di+MTs+YAPI+Pakem.