@phdthesis{UNY47152,
          school = {FIS},
           title = {STUDI KOMPARASI MODEL PROBLEM BASED LEARNING DAN INQUIRY BASED LEARNING DALAM PEMBELAJARAN GEOGRAFI KELAS XI IPS SMA NEGERI DI KOTA YOGYAKARTA},
          author = {SUMULYO HALIM SUMULYO HALIM},
            year = {2017},
             url = {http://eprints.uny.ac.id/47152/}
}