ANALISA KINERJA PELAKSANAAN SISTEM INFORMASI PELAYANAN KEBIDANAN IBU HAMIL DI PUSKESMAS KABUPATEN GUNUNG KIDUL TAHUN 2004. PERFORMANCE ANALYSIS OF INFORMATION SYSTEM IMPLEMENTATION MIDWIFERY SERVICE OF PREGNANT MOTHER IN PRIMARY HEALTH CENTER SERVICE GUNUNGKIDUL DISTRIC YEAR 2004. SPECIAL REGION OF YOGYAKARTA - SUPRIHANTARA, ARI (2005)