@unpublished{UNY3132,
          author = {Hendra Wijaya},
           title = {PENGEMBANGAN MODUL PEMROGRAMAN CNC DASAR SEBAGAI BAHAN AJAR MEMOGRAM CNC DI SMK NASIONAL BERBAH YOGYAKARTA},
            year = {2011},
          school = {UNY},
             url = {http://eprints.uny.ac.id/3132/}
}