@phdthesis{UNY13957,
          author = {Nika Putri As'ari},
           title = {PROPORTION REDUCTION IN ERROR (PRE) DALAM MENGUKUR ASOSIASI PENGGUNAAN KONTRASEPSI HORMONAL TERHADAP KEJADIAN HIPERTENSI},
           month = {January},
            year = {2014},
          school = {UNY},
             url = {http://eprints.uny.ac.id/13957/}
}