Dwitri, Nayuni, 		Sindi, Sukma, AND 		Sihombing, Irma.
" PENGAMANAN DATA FILE DOCUMENT MENGUNAKAN KRIPTOGRAFI ENCRYPTION SYSTEM (DES)" <em>JISICOM (Journal of Information System, Informatics and Computing)</em> [Online], Volume 4 Number 1 (22 June 2020)