@phdthesis{UNY2282,
           title = {ANALISIS KORESPONDENSI BERGANDA DAN PENERAPANNYA},
          school = {UNY},
          author = {RATNA FITRI WULANSARI},
           month = {July},
            year = {2010},
             url = {http://eprints.uny.ac.id/2282/}
}