Roossinta, Ita, 		Widiyati Nikmah, Yunita, AND 		Asa Fazary, M. Fakhry.
" Analisis Sistem Pelayanan Pendaftaran Online Poliklinik Jantung di Rumah Sakit Umum Pusat Dr. Sardjito Yogyakarta" <em>Multidisciplinary Journal</em> [Online], Volume 5 Number 2 (20 December 2022)