00000nam 2200000 4500 INLIS00000000002674 20260711101937 979-448-681-7 618.2 Amru Sofian Sinopsis Obstetri Obstetri Operatif Obstetri Sosial Jilid 2 Edisi 3 / Amru Sofian Jakarta : EGC, 2013 Kebidanan