Ulfah Hasanah08.01.55.0129. 2013. “PERANCANGAN SISTEM PELAYANAN DI BALAI PENGOBATAN RUMAH BERSALIN NARWASTU KARANGAWEN”. Information Technology and Telematics 1 (2). https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/1075.