@phdthesis{UNY18791,
          school = {Fakultas Matematika dan Ilmu Pengetahuan Alam},
           title = {PENGEMBANGAN CHEMISTRY TEACHING GUIDE (CTG)
MATERI POKOK ASAM BASA BAGI GURU KELAS XI
SEMESTER 2 SMA/MA},
          author = {Ardani Emiati},
            year = {2013},
             url = {http://eprints.uny.ac.id/18791/}
}