Rumiyati, E., and H. Murti. “SISTEM INFORMASI ADMINISTRASI SURAT PADA KANTOR SETUM POLDA JAWA TENGAH BERBASIS WEB”. Information Technology and Telematics, Vol. 8, no. 2, Mar. 2019, https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/6501.