Christian Carya Wardoyo08.01.53.013. 2014. “RANCANG BANGUN APLIKASI PERGUDANGAN MODEM PADA CONSUMER SERVICE PT. TELKOM REGIONAL IV JATENG DAN DIY BERBASIS WEB”. Information Technology and Telematics 4 (1). https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/2365.