00000nam 2200000 4500 INLIS00000000004291 20260815102232 979-448-044-212-2 618.2 Amru Sofian Sinopsis Obstetri Obstetri Fisiologi Obstetri Patologi jilid 2 Edisi 2 / Amru Sofian Jakarta : EGC, 1998 Kebidanan